[libc++][NFC] Remove __lcpp prefix in math.h

libcxx/include/math.h

 
 // signbit
 
 #ifdef signbit
 
 template <class _A1>
 _LIBCPP_HIDE_FROM_ABI
 bool
-__libcpp_signbit(_A1 __lcpp_x) _NOEXCEPT
+__libcpp_signbit(_A1 __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_signbit)
-    return __builtin_signbit(__lcpp_x);
+    return __builtin_signbit(__x);
 #else
-    return signbit(__lcpp_x);
+    return signbit(__x);
 #endif
 }
 
 #undef signbit
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_floating_point<_A1>::value, bool>::type
-signbit(_A1 __lcpp_x) _NOEXCEPT
+signbit(_A1 __x) _NOEXCEPT
 {
-    return __libcpp_signbit((typename std::__promote<_A1>::type)__lcpp_x);
+    return __libcpp_signbit((typename std::__promote<_A1>::type)__x);
 }
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<
     std::is_integral<_A1>::value && std::is_signed<_A1>::value, bool>::type
-signbit(_A1 __lcpp_x) _NOEXCEPT
-{ return __lcpp_x < 0; }
+signbit(_A1 __x) _NOEXCEPT
+{ return __x < 0; }
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<
     std::is_integral<_A1>::value && !std::is_signed<_A1>::value, bool>::type
 signbit(_A1) _NOEXCEPT
 { return false; }
 
 #elif defined(_LIBCPP_MSVCRT)
 
 template <typename _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_floating_point<_A1>::value, bool>::type
-signbit(_A1 __lcpp_x) _NOEXCEPT
+signbit(_A1 __x) _NOEXCEPT
 {
-  return ::signbit(static_cast<typename std::__promote<_A1>::type>(__lcpp_x));
+  return ::signbit(static_cast<typename std::__promote<_A1>::type>(__x));
 }
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<
     std::is_integral<_A1>::value && std::is_signed<_A1>::value, bool>::type
-signbit(_A1 __lcpp_x) _NOEXCEPT
-{ return __lcpp_x < 0; }
+signbit(_A1 __x) _NOEXCEPT
+{ return __x < 0; }
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<
     std::is_integral<_A1>::value && !std::is_signed<_A1>::value, bool>::type
 signbit(_A1) _NOEXCEPT
 { return false; }
 
 #endif // signbit
 
 // fpclassify
 
 #ifdef fpclassify
 
 template <class _A1>
 _LIBCPP_HIDE_FROM_ABI
 int
-__libcpp_fpclassify(_A1 __lcpp_x) _NOEXCEPT
+__libcpp_fpclassify(_A1 __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_fpclassify)
   return __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL, FP_SUBNORMAL,
-                                FP_ZERO, __lcpp_x);
+                                FP_ZERO, __x);
 #else
-    return fpclassify(__lcpp_x);
+    return fpclassify(__x);
 #endif
 }
 
 #undef fpclassify
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_floating_point<_A1>::value, int>::type
-fpclassify(_A1 __lcpp_x) _NOEXCEPT
+fpclassify(_A1 __x) _NOEXCEPT
 {
-    return __libcpp_fpclassify((typename std::__promote<_A1>::type)__lcpp_x);
+    return __libcpp_fpclassify((typename std::__promote<_A1>::type)__x);
 }
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, int>::type
-fpclassify(_A1 __lcpp_x) _NOEXCEPT
-{ return __lcpp_x == 0 ? FP_ZERO : FP_NORMAL; }
+fpclassify(_A1 __x) _NOEXCEPT
+{ return __x == 0 ? FP_ZERO : FP_NORMAL; }
 
 #elif defined(_LIBCPP_MSVCRT)
 
 template <typename _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_floating_point<_A1>::value, bool>::type
-fpclassify(_A1 __lcpp_x) _NOEXCEPT
+fpclassify(_A1 __x) _NOEXCEPT
 {
-  return ::fpclassify(static_cast<typename std::__promote<_A1>::type>(__lcpp_x));
+  return ::fpclassify(static_cast<typename std::__promote<_A1>::type>(__x));
 }
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, int>::type
-fpclassify(_A1 __lcpp_x) _NOEXCEPT
-{ return __lcpp_x == 0 ? FP_ZERO : FP_NORMAL; }
+fpclassify(_A1 __x) _NOEXCEPT
+{ return __x == 0 ? FP_ZERO : FP_NORMAL; }
 
 #endif // fpclassify
 
 // isfinite
 
 #ifdef isfinite
 
 template <class _A1>
 _LIBCPP_HIDE_FROM_ABI
 bool
-__libcpp_isfinite(_A1 __lcpp_x) _NOEXCEPT
+__libcpp_isfinite(_A1 __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_isfinite)
-    return __builtin_isfinite(__lcpp_x);
+    return __builtin_isfinite(__x);
 #else
-    return isfinite(__lcpp_x);
+    return isfinite(__x);
 #endif
 }
 
 #undef isfinite
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<
     std::is_arithmetic<_A1>::value && std::numeric_limits<_A1>::has_infinity,
     bool>::type
-isfinite(_A1 __lcpp_x) _NOEXCEPT
+isfinite(_A1 __x) _NOEXCEPT
 {
-    return __libcpp_isfinite((typename std::__promote<_A1>::type)__lcpp_x);
+    return __libcpp_isfinite((typename std::__promote<_A1>::type)__x);
 }
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<
     std::is_arithmetic<_A1>::value && !std::numeric_limits<_A1>::has_infinity,
     bool>::type
 isfinite(_A1) _NOEXCEPT
 { return true; }
 
 #endif // isfinite
 
 // isinf
 
 #ifdef isinf
 
 template <class _A1>
 _LIBCPP_HIDE_FROM_ABI
 bool
-__libcpp_isinf(_A1 __lcpp_x) _NOEXCEPT
+__libcpp_isinf(_A1 __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_isinf)
-    return __builtin_isinf(__lcpp_x);
+    return __builtin_isinf(__x);
 #else
-    return isinf(__lcpp_x);
+    return isinf(__x);
 #endif
 }
 
 #undef isinf
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<
     std::is_arithmetic<_A1>::value && std::numeric_limits<_A1>::has_infinity,
     bool>::type
-isinf(_A1 __lcpp_x) _NOEXCEPT
+isinf(_A1 __x) _NOEXCEPT
 {
-    return __libcpp_isinf((typename std::__promote<_A1>::type)__lcpp_x);
+    return __libcpp_isinf((typename std::__promote<_A1>::type)__x);
 }
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<
     std::is_arithmetic<_A1>::value && !std::numeric_limits<_A1>::has_infinity,
     bool>::type
 isinf(_A1) _NOEXCEPT
 { return false; }
 
 #ifdef _LIBCPP_PREFERRED_OVERLOAD
 inline _LIBCPP_HIDE_FROM_ABI
 bool
-isinf(float __lcpp_x) _NOEXCEPT { return __libcpp_isinf(__lcpp_x); }
+isinf(float __x) _NOEXCEPT { return __libcpp_isinf(__x); }
 
 inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_PREFERRED_OVERLOAD
 bool
-isinf(double __lcpp_x) _NOEXCEPT { return __libcpp_isinf(__lcpp_x); }
+isinf(double __x) _NOEXCEPT { return __libcpp_isinf(__x); }
 
 inline _LIBCPP_HIDE_FROM_ABI
 bool
-isinf(long double __lcpp_x) _NOEXCEPT { return __libcpp_isinf(__lcpp_x); }
+isinf(long double __x) _NOEXCEPT { return __libcpp_isinf(__x); }
 #endif
 
 #endif // isinf
 
 // isnan
 
 #ifdef isnan
 
 template <class _A1>
 _LIBCPP_HIDE_FROM_ABI
 bool
-__libcpp_isnan(_A1 __lcpp_x) _NOEXCEPT
+__libcpp_isnan(_A1 __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_isnan)
-    return __builtin_isnan(__lcpp_x);
+    return __builtin_isnan(__x);
 #else
-    return isnan(__lcpp_x);
+    return isnan(__x);
 #endif
 }
 
 #undef isnan
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_floating_point<_A1>::value, bool>::type
-isnan(_A1 __lcpp_x) _NOEXCEPT
+isnan(_A1 __x) _NOEXCEPT
 {
-    return __libcpp_isnan((typename std::__promote<_A1>::type)__lcpp_x);
+    return __libcpp_isnan((typename std::__promote<_A1>::type)__x);
 }
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, bool>::type
 isnan(_A1) _NOEXCEPT
 { return false; }
 
 #ifdef _LIBCPP_PREFERRED_OVERLOAD
 inline _LIBCPP_HIDE_FROM_ABI
 bool
-isnan(float __lcpp_x) _NOEXCEPT { return __libcpp_isnan(__lcpp_x); }
+isnan(float __x) _NOEXCEPT { return __libcpp_isnan(__x); }
 
 inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_PREFERRED_OVERLOAD
 bool
-isnan(double __lcpp_x) _NOEXCEPT { return __libcpp_isnan(__lcpp_x); }
+isnan(double __x) _NOEXCEPT { return __libcpp_isnan(__x); }
 
 inline _LIBCPP_HIDE_FROM_ABI
 bool
-isnan(long double __lcpp_x) _NOEXCEPT { return __libcpp_isnan(__lcpp_x); }
+isnan(long double __x) _NOEXCEPT { return __libcpp_isnan(__x); }
 #endif
 
 #endif // isnan
 
 // isnormal
 
 #ifdef isnormal
 
 template <class _A1>
 _LIBCPP_HIDE_FROM_ABI
 bool
-__libcpp_isnormal(_A1 __lcpp_x) _NOEXCEPT
+__libcpp_isnormal(_A1 __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_isnormal)
-    return __builtin_isnormal(__lcpp_x);
+    return __builtin_isnormal(__x);
 #else
-    return isnormal(__lcpp_x);
+    return isnormal(__x);
 #endif
 }
 
 #undef isnormal
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_floating_point<_A1>::value, bool>::type
-isnormal(_A1 __lcpp_x) _NOEXCEPT
+isnormal(_A1 __x) _NOEXCEPT
 {
-    return __libcpp_isnormal((typename std::__promote<_A1>::type)__lcpp_x);
+    return __libcpp_isnormal((typename std::__promote<_A1>::type)__x);
 }
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, bool>::type
-isnormal(_A1 __lcpp_x) _NOEXCEPT
-{ return __lcpp_x != 0; }
+isnormal(_A1 __x) _NOEXCEPT
+{ return __x != 0; }
 
 #endif // isnormal
 
 // isgreater
 
 #ifdef isgreater
 
 template <class _A1, class _A2>
 _LIBCPP_HIDE_FROM_ABI
 bool
-__libcpp_isgreater(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+__libcpp_isgreater(_A1 __x, _A2 __y) _NOEXCEPT
 {
-    return isgreater(__lcpp_x, __lcpp_y);
+    return isgreater(__x, __y);
 }
 
 #undef isgreater
 
 template <class _A1, class _A2>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if
 <
     std::is_arithmetic<_A1>::value &&
     std::is_arithmetic<_A2>::value,
     bool
 >::type
-isgreater(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+isgreater(_A1 __x, _A2 __y) _NOEXCEPT
 {
     typedef typename std::__promote<_A1, _A2>::type type;
-    return __libcpp_isgreater((type)__lcpp_x, (type)__lcpp_y);
+    return __libcpp_isgreater((type)__x, (type)__y);
 }
 
 #endif // isgreater
 
 // isgreaterequal
 
 #ifdef isgreaterequal
 
 template <class _A1, class _A2>
 _LIBCPP_HIDE_FROM_ABI
 bool
-__libcpp_isgreaterequal(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+__libcpp_isgreaterequal(_A1 __x, _A2 __y) _NOEXCEPT
 {
-    return isgreaterequal(__lcpp_x, __lcpp_y);
+    return isgreaterequal(__x, __y);
 }
 
 #undef isgreaterequal
 
 template <class _A1, class _A2>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if
 <
     std::is_arithmetic<_A1>::value &&
     std::is_arithmetic<_A2>::value,
     bool
 >::type
-isgreaterequal(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+isgreaterequal(_A1 __x, _A2 __y) _NOEXCEPT
 {
     typedef typename std::__promote<_A1, _A2>::type type;
-    return __libcpp_isgreaterequal((type)__lcpp_x, (type)__lcpp_y);
+    return __libcpp_isgreaterequal((type)__x, (type)__y);
 }
 
 #endif // isgreaterequal
 
 // isless
 
 #ifdef isless
 
 template <class _A1, class _A2>
 _LIBCPP_HIDE_FROM_ABI
 bool
-__libcpp_isless(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+__libcpp_isless(_A1 __x, _A2 __y) _NOEXCEPT
 {
-    return isless(__lcpp_x, __lcpp_y);
+    return isless(__x, __y);
 }
 
 #undef isless
 
 template <class _A1, class _A2>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if
 <
     std::is_arithmetic<_A1>::value &&
     std::is_arithmetic<_A2>::value,
     bool
 >::type
-isless(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+isless(_A1 __x, _A2 __y) _NOEXCEPT
 {
     typedef typename std::__promote<_A1, _A2>::type type;
-    return __libcpp_isless((type)__lcpp_x, (type)__lcpp_y);
+    return __libcpp_isless((type)__x, (type)__y);
 }
 
 #endif // isless
 
 // islessequal
 
 #ifdef islessequal
 
 template <class _A1, class _A2>
 _LIBCPP_HIDE_FROM_ABI
 bool
-__libcpp_islessequal(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+__libcpp_islessequal(_A1 __x, _A2 __y) _NOEXCEPT
 {
-    return islessequal(__lcpp_x, __lcpp_y);
+    return islessequal(__x, __y);
 }
 
 #undef islessequal
 
 template <class _A1, class _A2>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if
 <
     std::is_arithmetic<_A1>::value &&
     std::is_arithmetic<_A2>::value,
     bool
 >::type
-islessequal(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+islessequal(_A1 __x, _A2 __y) _NOEXCEPT
 {
     typedef typename std::__promote<_A1, _A2>::type type;
-    return __libcpp_islessequal((type)__lcpp_x, (type)__lcpp_y);
+    return __libcpp_islessequal((type)__x, (type)__y);
 }
 
 #endif // islessequal
 
 // islessgreater
 
 #ifdef islessgreater
 
 template <class _A1, class _A2>
 _LIBCPP_HIDE_FROM_ABI
 bool
-__libcpp_islessgreater(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+__libcpp_islessgreater(_A1 __x, _A2 __y) _NOEXCEPT
 {
-    return islessgreater(__lcpp_x, __lcpp_y);
+    return islessgreater(__x, __y);
 }
 
 #undef islessgreater
 
 template <class _A1, class _A2>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if
 <
     std::is_arithmetic<_A1>::value &&
     std::is_arithmetic<_A2>::value,
     bool
 >::type
-islessgreater(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+islessgreater(_A1 __x, _A2 __y) _NOEXCEPT
 {
     typedef typename std::__promote<_A1, _A2>::type type;
-    return __libcpp_islessgreater((type)__lcpp_x, (type)__lcpp_y);
+    return __libcpp_islessgreater((type)__x, (type)__y);
 }
 
 #endif // islessgreater
 
 // isunordered
 
 #ifdef isunordered
 
 template <class _A1, class _A2>
 _LIBCPP_HIDE_FROM_ABI
 bool
-__libcpp_isunordered(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+__libcpp_isunordered(_A1 __x, _A2 __y) _NOEXCEPT
 {
-    return isunordered(__lcpp_x, __lcpp_y);
+    return isunordered(__x, __y);
 }
 
 #undef isunordered
 
 template <class _A1, class _A2>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if
 <
     std::is_arithmetic<_A1>::value &&
     std::is_arithmetic<_A2>::value,
     bool
 >::type
-isunordered(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+isunordered(_A1 __x, _A2 __y) _NOEXCEPT
 {
     typedef typename std::__promote<_A1, _A2>::type type;
-    return __libcpp_isunordered((type)__lcpp_x, (type)__lcpp_y);
+    return __libcpp_isunordered((type)__x, (type)__y);
 }
 
 #endif // isunordered
 
 // abs
 //
 // handled in stdlib.h
 
 // div
 //
 // handled in stdlib.h
 
 // acos
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       acos(float __lcpp_x) _NOEXCEPT       {return ::acosf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double acos(long double __lcpp_x) _NOEXCEPT {return ::acosl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       acos(float __x) _NOEXCEPT       {return ::acosf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double acos(long double __x) _NOEXCEPT {return ::acosl(__x);}
 #    endif
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-acos(_A1 __lcpp_x) _NOEXCEPT {return ::acos((double)__lcpp_x);}
+acos(_A1 __x) _NOEXCEPT {return ::acos((double)__x);}
 
 // asin
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       asin(float __lcpp_x) _NOEXCEPT       {return ::asinf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double asin(long double __lcpp_x) _NOEXCEPT {return ::asinl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       asin(float __x) _NOEXCEPT       {return ::asinf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double asin(long double __x) _NOEXCEPT {return ::asinl(__x);}
 #    endif
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-asin(_A1 __lcpp_x) _NOEXCEPT {return ::asin((double)__lcpp_x);}
+asin(_A1 __x) _NOEXCEPT {return ::asin((double)__x);}
 
 // atan
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       atan(float __lcpp_x) _NOEXCEPT       {return ::atanf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double atan(long double __lcpp_x) _NOEXCEPT {return ::atanl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       atan(float __x) _NOEXCEPT       {return ::atanf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double atan(long double __x) _NOEXCEPT {return ::atanl(__x);}
 #    endif
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-atan(_A1 __lcpp_x) _NOEXCEPT {return ::atan((double)__lcpp_x);}
+atan(_A1 __x) _NOEXCEPT {return ::atan((double)__x);}
 
 // atan2
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       atan2(float __lcpp_y, float __lcpp_x) _NOEXCEPT             {return ::atan2f(__lcpp_y, __lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double atan2(long double __lcpp_y, long double __lcpp_x) _NOEXCEPT {return ::atan2l(__lcpp_y, __lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       atan2(float __y, float __x) _NOEXCEPT             {return ::atan2f(__y, __x);}
+inline _LIBCPP_HIDE_FROM_ABI long double atan2(long double __y, long double __x) _NOEXCEPT {return ::atan2l(__y, __x);}
 #    endif
 
 template <class _A1, class _A2>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::__enable_if_t
 <
     std::is_arithmetic<_A1>::value &&
     std::is_arithmetic<_A2>::value,
     std::__promote<_A1, _A2>
 >::type
-atan2(_A1 __lcpp_y, _A2 __lcpp_x) _NOEXCEPT
+atan2(_A1 __y, _A2 __x) _NOEXCEPT
 {
     typedef typename std::__promote<_A1, _A2>::type __result_type;
     static_assert((!(std::_IsSame<_A1, __result_type>::value &&
                      std::_IsSame<_A2, __result_type>::value)), "");
-    return ::atan2((__result_type)__lcpp_y, (__result_type)__lcpp_x);
+    return ::atan2((__result_type)__y, (__result_type)__x);
 }
 
 // ceil
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       ceil(float __lcpp_x) _NOEXCEPT       {return ::ceilf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double ceil(long double __lcpp_x) _NOEXCEPT {return ::ceill(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       ceil(float __x) _NOEXCEPT       {return ::ceilf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double ceil(long double __x) _NOEXCEPT {return ::ceill(__x);}
 #    endif
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-ceil(_A1 __lcpp_x) _NOEXCEPT {return ::ceil((double)__lcpp_x);}
+ceil(_A1 __x) _NOEXCEPT {return ::ceil((double)__x);}
 
 // cos
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       cos(float __lcpp_x) _NOEXCEPT       {return ::cosf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double cos(long double __lcpp_x) _NOEXCEPT {return ::cosl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       cos(float __x) _NOEXCEPT       {return ::cosf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double cos(long double __x) _NOEXCEPT {return ::cosl(__x);}
 #    endif
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-cos(_A1 __lcpp_x) _NOEXCEPT {return ::cos((double)__lcpp_x);}
+cos(_A1 __x) _NOEXCEPT {return ::cos((double)__x);}
 
 // cosh
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       cosh(float __lcpp_x) _NOEXCEPT       {return ::coshf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double cosh(long double __lcpp_x) _NOEXCEPT {return ::coshl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       cosh(float __x) _NOEXCEPT       {return ::coshf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double cosh(long double __x) _NOEXCEPT {return ::coshl(__x);}
 #    endif
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-cosh(_A1 __lcpp_x) _NOEXCEPT {return ::cosh((double)__lcpp_x);}
+cosh(_A1 __x) _NOEXCEPT {return ::cosh((double)__x);}
 
 // exp
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       exp(float __lcpp_x) _NOEXCEPT       {return ::expf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double exp(long double __lcpp_x) _NOEXCEPT {return ::expl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       exp(float __x) _NOEXCEPT       {return ::expf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double exp(long double __x) _NOEXCEPT {return ::expl(__x);}
 #    endif
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-exp(_A1 __lcpp_x) _NOEXCEPT {return ::exp((double)__lcpp_x);}
+exp(_A1 __x) _NOEXCEPT {return ::exp((double)__x);}
 
 // fabs
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       fabs(float __lcpp_x) _NOEXCEPT       {return ::fabsf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double fabs(long double __lcpp_x) _NOEXCEPT {return ::fabsl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       fabs(float __x) _NOEXCEPT       {return ::fabsf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double fabs(long double __x) _NOEXCEPT {return ::fabsl(__x);}
 #    endif
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-fabs(_A1 __lcpp_x) _NOEXCEPT {return ::fabs((double)__lcpp_x);}
+fabs(_A1 __x) _NOEXCEPT {return ::fabs((double)__x);}
 
 // floor
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       floor(float __lcpp_x) _NOEXCEPT       {return ::floorf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double floor(long double __lcpp_x) _NOEXCEPT {return ::floorl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       floor(float __x) _NOEXCEPT       {return ::floorf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double floor(long double __x) _NOEXCEPT {return ::floorl(__x);}
 #    endif
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-floor(_A1 __lcpp_x) _NOEXCEPT {return ::floor((double)__lcpp_x);}
+floor(_A1 __x) _NOEXCEPT {return ::floor((double)__x);}
 
 // fmod
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       fmod(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return ::fmodf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_HIDE_FROM_ABI long double fmod(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return ::fmodl(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_HIDE_FROM_ABI float       fmod(float __x, float __y) _NOEXCEPT             {return ::fmodf(__x, __y);}
+inline _LIBCPP_HIDE_FROM_ABI long double fmod(long double __x, long double __y) _NOEXCEPT {return ::fmodl(__x, __y);}
 #    endif
 
 template <class _A1, class _A2>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::__enable_if_t
 <
     std::is_arithmetic<_A1>::value &&
     std::is_arithmetic<_A2>::value,
     std::__promote<_A1, _A2>
 >::type
-fmod(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+fmod(_A1 __x, _A2 __y) _NOEXCEPT
 {
     typedef typename std::__promote<_A1, _A2>::type __result_type;
     static_assert((!(std::_IsSame<_A1, __result_type>::value &&
                      std::_IsSame<_A2, __result_type>::value)), "");
-    return ::fmod((__result_type)__lcpp_x, (__result_type)__lcpp_y);
+    return ::fmod((__result_type)__x, (__result_type)__y);
 }
 
 // frexp
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       frexp(float __lcpp_x, int* __lcpp_e) _NOEXCEPT       {return ::frexpf(__lcpp_x, __lcpp_e);}
-inline _LIBCPP_HIDE_FROM_ABI long double frexp(long double __lcpp_x, int* __lcpp_e) _NOEXCEPT {return ::frexpl(__lcpp_x, __lcpp_e);}
+inline _LIBCPP_HIDE_FROM_ABI float       frexp(float __x, int* __e) _NOEXCEPT       {return ::frexpf(__x, __e);}
+inline _LIBCPP_HIDE_FROM_ABI long double frexp(long double __x, int* __e) _NOEXCEPT {return ::frexpl(__x, __e);}
 #    endif
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-frexp(_A1 __lcpp_x, int* __lcpp_e) _NOEXCEPT {return ::frexp((double)__lcpp_x, __lcpp_e);}
+frexp(_A1 __x, int* __e) _NOEXCEPT {return ::frexp((double)__x, __e);}
 
 // ldexp
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       ldexp(float __lcpp_x, int __lcpp_e) _NOEXCEPT       {return ::ldexpf(__lcpp_x, __lcpp_e);}
-inline _LIBCPP_HIDE_FROM_ABI long double ldexp(long double __lcpp_x, int __lcpp_e) _NOEXCEPT {return ::ldexpl(__lcpp_x, __lcpp_e);}
+inline _LIBCPP_HIDE_FROM_ABI float       ldexp(float __x, int __e) _NOEXCEPT       {return ::ldexpf(__x, __e);}
+inline _LIBCPP_HIDE_FROM_ABI long double ldexp(long double __x, int __e) _NOEXCEPT {return ::ldexpl(__x, __e);}
 #    endif
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-ldexp(_A1 __lcpp_x, int __lcpp_e) _NOEXCEPT {return ::ldexp((double)__lcpp_x, __lcpp_e);}
+ldexp(_A1 __x, int __e) _NOEXCEPT {return ::ldexp((double)__x, __e);}
 
 // log
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       log(float __lcpp_x) _NOEXCEPT       {return ::logf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double log(long double __lcpp_x) _NOEXCEPT {return ::logl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       log(float __x) _NOEXCEPT       {return ::logf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double log(long double __x) _NOEXCEPT {return ::logl(__x);}
 #    endif
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-log(_A1 __lcpp_x) _NOEXCEPT {return ::log((double)__lcpp_x);}
+log(_A1 __x) _NOEXCEPT {return ::log((double)__x);}
 
 // log10
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       log10(float __lcpp_x) _NOEXCEPT       {return ::log10f(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double log10(long double __lcpp_x) _NOEXCEPT {return ::log10l(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       log10(float __x) _NOEXCEPT       {return ::log10f(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double log10(long double __x) _NOEXCEPT {return ::log10l(__x);}
 #    endif
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-log10(_A1 __lcpp_x) _NOEXCEPT {return ::log10((double)__lcpp_x);}
+log10(_A1 __x) _NOEXCEPT {return ::log10((double)__x);}
 
 // modf
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       modf(float __lcpp_x, float* __lcpp_y) _NOEXCEPT             {return ::modff(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_HIDE_FROM_ABI long double modf(long double __lcpp_x, long double* __lcpp_y) _NOEXCEPT {return ::modfl(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_HIDE_FROM_ABI float       modf(float __x, float* __y) _NOEXCEPT             {return ::modff(__x, __y);}
+inline _LIBCPP_HIDE_FROM_ABI long double modf(long double __x, long double* __y) _NOEXCEPT {return ::modfl(__x, __y);}
 #    endif
 
 // pow
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       pow(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return ::powf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_HIDE_FROM_ABI long double pow(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return ::powl(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_HIDE_FROM_ABI float       pow(float __x, float __y) _NOEXCEPT             {return ::powf(__x, __y);}
+inline _LIBCPP_HIDE_FROM_ABI long double pow(long double __x, long double __y) _NOEXCEPT {return ::powl(__x, __y);}
 #    endif
 
 template <class _A1, class _A2>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::__enable_if_t
 <
     std::is_arithmetic<_A1>::value &&
     std::is_arithmetic<_A2>::value,
     std::__promote<_A1, _A2>
 >::type
-pow(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+pow(_A1 __x, _A2 __y) _NOEXCEPT
 {
     typedef typename std::__promote<_A1, _A2>::type __result_type;
     static_assert((!(std::_IsSame<_A1, __result_type>::value &&
                      std::_IsSame<_A2, __result_type>::value)), "");
-    return ::pow((__result_type)__lcpp_x, (__result_type)__lcpp_y);
+    return ::pow((__result_type)__x, (__result_type)__y);
 }
 
 // sin
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       sin(float __lcpp_x) _NOEXCEPT       {return ::sinf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double sin(long double __lcpp_x) _NOEXCEPT {return ::sinl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       sin(float __x) _NOEXCEPT       {return ::sinf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double sin(long double __x) _NOEXCEPT {return ::sinl(__x);}
 #endif
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-sin(_A1 __lcpp_x) _NOEXCEPT {return ::sin((double)__lcpp_x);}
+sin(_A1 __x) _NOEXCEPT {return ::sin((double)__x);}
 
 // sinh
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       sinh(float __lcpp_x) _NOEXCEPT       {return ::sinhf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double sinh(long double __lcpp_x) _NOEXCEPT {return ::sinhl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       sinh(float __x) _NOEXCEPT       {return ::sinhf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double sinh(long double __x) _NOEXCEPT {return ::sinhl(__x);}
 #    endif
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-sinh(_A1 __lcpp_x) _NOEXCEPT {return ::sinh((double)__lcpp_x);}
+sinh(_A1 __x) _NOEXCEPT {return ::sinh((double)__x);}
 
 // sqrt
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       sqrt(float __lcpp_x) _NOEXCEPT       {return ::sqrtf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double sqrt(long double __lcpp_x) _NOEXCEPT {return ::sqrtl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       sqrt(float __x) _NOEXCEPT       {return ::sqrtf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double sqrt(long double __x) _NOEXCEPT {return ::sqrtl(__x);}
 #    endif
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-sqrt(_A1 __lcpp_x) _NOEXCEPT {return ::sqrt((double)__lcpp_x);}
+sqrt(_A1 __x) _NOEXCEPT {return ::sqrt((double)__x);}
 
 // tan
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       tan(float __lcpp_x) _NOEXCEPT       {return ::tanf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double tan(long double __lcpp_x) _NOEXCEPT {return ::tanl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       tan(float __x) _NOEXCEPT       {return ::tanf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double tan(long double __x) _NOEXCEPT {return ::tanl(__x);}
 #    endif
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-tan(_A1 __lcpp_x) _NOEXCEPT {return ::tan((double)__lcpp_x);}
+tan(_A1 __x) _NOEXCEPT {return ::tan((double)__x);}
 
 // tanh
 
 #    if !defined(__sun__)
-inline _LIBCPP_HIDE_FROM_ABI float       tanh(float __lcpp_x) _NOEXCEPT       {return ::tanhf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double tanh(long double __lcpp_x) _NOEXCEPT {return ::tanhl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       tanh(float __x) _NOEXCEPT       {return ::tanhf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double tanh(long double __x) _NOEXCEPT {return ::tanhl(__x);}
 #    endif
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-tanh(_A1 __lcpp_x) _NOEXCEPT {return ::tanh((double)__lcpp_x);}
+tanh(_A1 __x) _NOEXCEPT {return ::tanh((double)__x);}
 
 // acosh
 
-inline _LIBCPP_HIDE_FROM_ABI float       acosh(float __lcpp_x) _NOEXCEPT       {return ::acoshf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double acosh(long double __lcpp_x) _NOEXCEPT {return ::acoshl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       acosh(float __x) _NOEXCEPT       {return ::acoshf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double acosh(long double __x) _NOEXCEPT {return ::acoshl(__x);}
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-acosh(_A1 __lcpp_x) _NOEXCEPT {return ::acosh((double)__lcpp_x);}
+acosh(_A1 __x) _NOEXCEPT {return ::acosh((double)__x);}
 
 // asinh
 
-inline _LIBCPP_HIDE_FROM_ABI float       asinh(float __lcpp_x) _NOEXCEPT       {return ::asinhf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double asinh(long double __lcpp_x) _NOEXCEPT {return ::asinhl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       asinh(float __x) _NOEXCEPT       {return ::asinhf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double asinh(long double __x) _NOEXCEPT {return ::asinhl(__x);}
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-asinh(_A1 __lcpp_x) _NOEXCEPT {return ::asinh((double)__lcpp_x);}
+asinh(_A1 __x) _NOEXCEPT {return ::asinh((double)__x);}
 
 // atanh
 
-inline _LIBCPP_HIDE_FROM_ABI float       atanh(float __lcpp_x) _NOEXCEPT       {return ::atanhf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double atanh(long double __lcpp_x) _NOEXCEPT {return ::atanhl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       atanh(float __x) _NOEXCEPT       {return ::atanhf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double atanh(long double __x) _NOEXCEPT {return ::atanhl(__x);}
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-atanh(_A1 __lcpp_x) _NOEXCEPT {return ::atanh((double)__lcpp_x);}
+atanh(_A1 __x) _NOEXCEPT {return ::atanh((double)__x);}
 
 // cbrt
 
-inline _LIBCPP_HIDE_FROM_ABI float       cbrt(float __lcpp_x) _NOEXCEPT       {return ::cbrtf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double cbrt(long double __lcpp_x) _NOEXCEPT {return ::cbrtl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       cbrt(float __x) _NOEXCEPT       {return ::cbrtf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double cbrt(long double __x) _NOEXCEPT {return ::cbrtl(__x);}
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-cbrt(_A1 __lcpp_x) _NOEXCEPT {return ::cbrt((double)__lcpp_x);}
+cbrt(_A1 __x) _NOEXCEPT {return ::cbrt((double)__x);}
 
 // copysign
 
 #if __has_builtin(__builtin_copysignf)
 _LIBCPP_CONSTEXPR
 #endif
-inline _LIBCPP_HIDE_FROM_ABI float __libcpp_copysign(float __lcpp_x, float __lcpp_y) _NOEXCEPT {
+inline _LIBCPP_HIDE_FROM_ABI float __libcpp_copysign(float __x, float __y) _NOEXCEPT {
 #if __has_builtin(__builtin_copysignf)
-  return __builtin_copysignf(__lcpp_x, __lcpp_y);
+  return __builtin_copysignf(__x, __y);
 #else
-  return ::copysignf(__lcpp_x, __lcpp_y);
+  return ::copysignf(__x, __y);
 #endif
 }
 
 #if __has_builtin(__builtin_copysign)
 _LIBCPP_CONSTEXPR
 #endif
-inline _LIBCPP_HIDE_FROM_ABI double __libcpp_copysign(double __lcpp_x, double __lcpp_y) _NOEXCEPT {
+inline _LIBCPP_HIDE_FROM_ABI double __libcpp_copysign(double __x, double __y) _NOEXCEPT {
 #if __has_builtin(__builtin_copysign)
-  return __builtin_copysign(__lcpp_x, __lcpp_y);
+  return __builtin_copysign(__x, __y);
 #else
-  return ::copysign(__lcpp_x, __lcpp_y);
+  return ::copysign(__x, __y);
 #endif
 }
 
 #if __has_builtin(__builtin_copysignl)
 _LIBCPP_CONSTEXPR
 #endif
-inline _LIBCPP_HIDE_FROM_ABI long double __libcpp_copysign(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {
+inline _LIBCPP_HIDE_FROM_ABI long double __libcpp_copysign(long double __x, long double __y) _NOEXCEPT {
 #if __has_builtin(__builtin_copysignl)
-  return __builtin_copysignl(__lcpp_x, __lcpp_y);
+  return __builtin_copysignl(__x, __y);
 #else
-  return ::copysignl(__lcpp_x, __lcpp_y);
+  return ::copysignl(__x, __y);
 #endif
 }
 
 template <class _A1, class _A2>
 #if __has_builtin(__builtin_copysign)
 _LIBCPP_CONSTEXPR
 #endif
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::__enable_if_t
 <
     std::is_arithmetic<_A1>::value &&
     std::is_arithmetic<_A2>::value,
     std::__promote<_A1, _A2>
 >::type
-__libcpp_copysign(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT {
+__libcpp_copysign(_A1 __x, _A2 __y) _NOEXCEPT {
     typedef typename std::__promote<_A1, _A2>::type __result_type;
     static_assert((!(std::_IsSame<_A1, __result_type>::value &&
                      std::_IsSame<_A2, __result_type>::value)), "");
 #if __has_builtin(__builtin_copysign)
-    return __builtin_copysign((__result_type)__lcpp_x, (__result_type)__lcpp_y);
+    return __builtin_copysign((__result_type)__x, (__result_type)__y);
 #else
-    return ::copysign((__result_type)__lcpp_x, (__result_type)__lcpp_y);
+    return ::copysign((__result_type)__x, (__result_type)__y);
 #endif
 }
 
-inline _LIBCPP_HIDE_FROM_ABI float copysign(float __lcpp_x, float __lcpp_y) _NOEXCEPT {
-  return ::__libcpp_copysign(__lcpp_x, __lcpp_y);
+inline _LIBCPP_HIDE_FROM_ABI float copysign(float __x, float __y) _NOEXCEPT {
+  return ::__libcpp_copysign(__x, __y);
 }
 
-inline _LIBCPP_HIDE_FROM_ABI long double copysign(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {
-  return ::__libcpp_copysign(__lcpp_x, __lcpp_y);
+inline _LIBCPP_HIDE_FROM_ABI long double copysign(long double __x, long double __y) _NOEXCEPT {
+  return ::__libcpp_copysign(__x, __y);
 }
 
 template <class _A1, class _A2>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::__enable_if_t
 <
     std::is_arithmetic<_A1>::value &&
     std::is_arithmetic<_A2>::value,
     std::__promote<_A1, _A2>
 >::type
-    copysign(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT {
-  return ::__libcpp_copysign(__lcpp_x, __lcpp_y);
+    copysign(_A1 __x, _A2 __y) _NOEXCEPT {
+  return ::__libcpp_copysign(__x, __y);
 }
 
 // erf
 
-inline _LIBCPP_HIDE_FROM_ABI float       erf(float __lcpp_x) _NOEXCEPT       {return ::erff(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double erf(long double __lcpp_x) _NOEXCEPT {return ::erfl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       erf(float __x) _NOEXCEPT       {return ::erff(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double erf(long double __x) _NOEXCEPT {return ::erfl(__x);}
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-erf(_A1 __lcpp_x) _NOEXCEPT {return ::erf((double)__lcpp_x);}
+erf(_A1 __x) _NOEXCEPT {return ::erf((double)__x);}
 
 // erfc
 
-inline _LIBCPP_HIDE_FROM_ABI float       erfc(float __lcpp_x) _NOEXCEPT       {return ::erfcf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double erfc(long double __lcpp_x) _NOEXCEPT {return ::erfcl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       erfc(float __x) _NOEXCEPT       {return ::erfcf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double erfc(long double __x) _NOEXCEPT {return ::erfcl(__x);}
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-erfc(_A1 __lcpp_x) _NOEXCEPT {return ::erfc((double)__lcpp_x);}
+erfc(_A1 __x) _NOEXCEPT {return ::erfc((double)__x);}
 
 // exp2
 
-inline _LIBCPP_HIDE_FROM_ABI float       exp2(float __lcpp_x) _NOEXCEPT       {return ::exp2f(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double exp2(long double __lcpp_x) _NOEXCEPT {return ::exp2l(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       exp2(float __x) _NOEXCEPT       {return ::exp2f(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double exp2(long double __x) _NOEXCEPT {return ::exp2l(__x);}
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-exp2(_A1 __lcpp_x) _NOEXCEPT {return ::exp2((double)__lcpp_x);}
+exp2(_A1 __x) _NOEXCEPT {return ::exp2((double)__x);}
 
 // expm1
 
-inline _LIBCPP_HIDE_FROM_ABI float       expm1(float __lcpp_x) _NOEXCEPT       {return ::expm1f(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double expm1(long double __lcpp_x) _NOEXCEPT {return ::expm1l(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       expm1(float __x) _NOEXCEPT       {return ::expm1f(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double expm1(long double __x) _NOEXCEPT {return ::expm1l(__x);}
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-expm1(_A1 __lcpp_x) _NOEXCEPT {return ::expm1((double)__lcpp_x);}
+expm1(_A1 __x) _NOEXCEPT {return ::expm1((double)__x);}
 
 // fdim
 
-inline _LIBCPP_HIDE_FROM_ABI float       fdim(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return ::fdimf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_HIDE_FROM_ABI long double fdim(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return ::fdiml(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_HIDE_FROM_ABI float       fdim(float __x, float __y) _NOEXCEPT             {return ::fdimf(__x, __y);}
+inline _LIBCPP_HIDE_FROM_ABI long double fdim(long double __x, long double __y) _NOEXCEPT {return ::fdiml(__x, __y);}
 
 template <class _A1, class _A2>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::__enable_if_t
 <
     std::is_arithmetic<_A1>::value &&
     std::is_arithmetic<_A2>::value,
     std::__promote<_A1, _A2>
 >::type
-fdim(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+fdim(_A1 __x, _A2 __y) _NOEXCEPT
 {
     typedef typename std::__promote<_A1, _A2>::type __result_type;
     static_assert((!(std::_IsSame<_A1, __result_type>::value &&
                      std::_IsSame<_A2, __result_type>::value)), "");
-    return ::fdim((__result_type)__lcpp_x, (__result_type)__lcpp_y);
+    return ::fdim((__result_type)__x, (__result_type)__y);
 }
 
 // fma
 
-inline _LIBCPP_HIDE_FROM_ABI float       fma(float __lcpp_x, float __lcpp_y, float __lcpp_z) _NOEXCEPT
+inline _LIBCPP_HIDE_FROM_ABI float       fma(float __x, float __y, float __z) _NOEXCEPT
 {
 #if __has_builtin(__builtin_fmaf)
-    return __builtin_fmaf(__lcpp_x, __lcpp_y, __lcpp_z);
+    return __builtin_fmaf(__x, __y, __z);
 #else
-    return ::fmaf(__lcpp_x, __lcpp_y, __lcpp_z);
+    return ::fmaf(__x, __y, __z);
 #endif
 }
-inline _LIBCPP_HIDE_FROM_ABI long double fma(long double __lcpp_x, long double __lcpp_y, long double __lcpp_z) _NOEXCEPT
+inline _LIBCPP_HIDE_FROM_ABI long double fma(long double __x, long double __y, long double __z) _NOEXCEPT
 {
 #if __has_builtin(__builtin_fmal)
-    return __builtin_fmal(__lcpp_x, __lcpp_y, __lcpp_z);
+    return __builtin_fmal(__x, __y, __z);
 #else
-    return ::fmal(__lcpp_x, __lcpp_y, __lcpp_z);
+    return ::fmal(__x, __y, __z);
 #endif
 }
 
 template <class _A1, class _A2, class _A3>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::__enable_if_t
 <
     std::is_arithmetic<_A1>::value &&
     std::is_arithmetic<_A2>::value &&
     std::is_arithmetic<_A3>::value,
     std::__promote<_A1, _A2, _A3>
 >::type
-fma(_A1 __lcpp_x, _A2 __lcpp_y, _A3 __lcpp_z) _NOEXCEPT
+fma(_A1 __x, _A2 __y, _A3 __z) _NOEXCEPT
 {
     typedef typename std::__promote<_A1, _A2, _A3>::type __result_type;
     static_assert((!(std::_IsSame<_A1, __result_type>::value &&
                      std::_IsSame<_A2, __result_type>::value &&
                      std::_IsSame<_A3, __result_type>::value)), "");
 #if __has_builtin(__builtin_fma)
-    return __builtin_fma((__result_type)__lcpp_x, (__result_type)__lcpp_y, (__result_type)__lcpp_z);
+    return __builtin_fma((__result_type)__x, (__result_type)__y, (__result_type)__z);
 #else
-    return ::fma((__result_type)__lcpp_x, (__result_type)__lcpp_y, (__result_type)__lcpp_z);
+    return ::fma((__result_type)__x, (__result_type)__y, (__result_type)__z);
 #endif
 }
 
 // fmax
 
-inline _LIBCPP_HIDE_FROM_ABI float       fmax(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return ::fmaxf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_HIDE_FROM_ABI long double fmax(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return ::fmaxl(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_HIDE_FROM_ABI float       fmax(float __x, float __y) _NOEXCEPT             {return ::fmaxf(__x, __y);}
+inline _LIBCPP_HIDE_FROM_ABI long double fmax(long double __x, long double __y) _NOEXCEPT {return ::fmaxl(__x, __y);}
 
 template <class _A1, class _A2>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::__enable_if_t
 <
     std::is_arithmetic<_A1>::value &&
     std::is_arithmetic<_A2>::value,
     std::__promote<_A1, _A2>
 >::type
-fmax(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+fmax(_A1 __x, _A2 __y) _NOEXCEPT
 {
     typedef typename std::__promote<_A1, _A2>::type __result_type;
     static_assert((!(std::_IsSame<_A1, __result_type>::value &&
                      std::_IsSame<_A2, __result_type>::value)), "");
-    return ::fmax((__result_type)__lcpp_x, (__result_type)__lcpp_y);
+    return ::fmax((__result_type)__x, (__result_type)__y);
 }
 
 // fmin
 
-inline _LIBCPP_HIDE_FROM_ABI float       fmin(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return ::fminf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_HIDE_FROM_ABI long double fmin(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return ::fminl(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_HIDE_FROM_ABI float       fmin(float __x, float __y) _NOEXCEPT             {return ::fminf(__x, __y);}
+inline _LIBCPP_HIDE_FROM_ABI long double fmin(long double __x, long double __y) _NOEXCEPT {return ::fminl(__x, __y);}
 
 template <class _A1, class _A2>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::__enable_if_t
 <
     std::is_arithmetic<_A1>::value &&
     std::is_arithmetic<_A2>::value,
     std::__promote<_A1, _A2>
 >::type
-fmin(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+fmin(_A1 __x, _A2 __y) _NOEXCEPT
 {
     typedef typename std::__promote<_A1, _A2>::type __result_type;
     static_assert((!(std::_IsSame<_A1, __result_type>::value &&
                      std::_IsSame<_A2, __result_type>::value)), "");
-    return ::fmin((__result_type)__lcpp_x, (__result_type)__lcpp_y);
+    return ::fmin((__result_type)__x, (__result_type)__y);
 }
 
 // hypot
 
-inline _LIBCPP_HIDE_FROM_ABI float       hypot(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return ::hypotf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_HIDE_FROM_ABI long double hypot(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return ::hypotl(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_HIDE_FROM_ABI float       hypot(float __x, float __y) _NOEXCEPT             {return ::hypotf(__x, __y);}
+inline _LIBCPP_HIDE_FROM_ABI long double hypot(long double __x, long double __y) _NOEXCEPT {return ::hypotl(__x, __y);}
 
 template <class _A1, class _A2>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::__enable_if_t
 <
     std::is_arithmetic<_A1>::value &&
     std::is_arithmetic<_A2>::value,
     std::__promote<_A1, _A2>
 >::type
-hypot(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+hypot(_A1 __x, _A2 __y) _NOEXCEPT
 {
     typedef typename std::__promote<_A1, _A2>::type __result_type;
     static_assert((!(std::_IsSame<_A1, __result_type>::value &&
                      std::_IsSame<_A2, __result_type>::value)), "");
-    return ::hypot((__result_type)__lcpp_x, (__result_type)__lcpp_y);
+    return ::hypot((__result_type)__x, (__result_type)__y);
 }
 
 // ilogb
 
-inline _LIBCPP_HIDE_FROM_ABI int ilogb(float __lcpp_x) _NOEXCEPT       {return ::ilogbf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI int ilogb(long double __lcpp_x) _NOEXCEPT {return ::ilogbl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI int ilogb(float __x) _NOEXCEPT       {return ::ilogbf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI int ilogb(long double __x) _NOEXCEPT {return ::ilogbl(__x);}
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, int>::type
-ilogb(_A1 __lcpp_x) _NOEXCEPT {return ::ilogb((double)__lcpp_x);}
+ilogb(_A1 __x) _NOEXCEPT {return ::ilogb((double)__x);}
 
 // lgamma
 
-inline _LIBCPP_HIDE_FROM_ABI float       lgamma(float __lcpp_x) _NOEXCEPT       {return ::lgammaf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double lgamma(long double __lcpp_x) _NOEXCEPT {return ::lgammal(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       lgamma(float __x) _NOEXCEPT       {return ::lgammaf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double lgamma(long double __x) _NOEXCEPT {return ::lgammal(__x);}
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-lgamma(_A1 __lcpp_x) _NOEXCEPT {return ::lgamma((double)__lcpp_x);}
+lgamma(_A1 __x) _NOEXCEPT {return ::lgamma((double)__x);}
 
 // llrint
 
-inline _LIBCPP_HIDE_FROM_ABI long long llrint(float __lcpp_x) _NOEXCEPT
+inline _LIBCPP_HIDE_FROM_ABI long long llrint(float __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_llrintf)
-    return __builtin_llrintf(__lcpp_x);
+    return __builtin_llrintf(__x);
 #else
-    return ::llrintf(__lcpp_x);
+    return ::llrintf(__x);
 #endif
 }
-inline _LIBCPP_HIDE_FROM_ABI long long llrint(long double __lcpp_x) _NOEXCEPT
+inline _LIBCPP_HIDE_FROM_ABI long long llrint(long double __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_llrintl)
-    return __builtin_llrintl(__lcpp_x);
+    return __builtin_llrintl(__x);
 #else
-    return ::llrintl(__lcpp_x);
+    return ::llrintl(__x);
 #endif
 }
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, long long>::type
-llrint(_A1 __lcpp_x) _NOEXCEPT
+llrint(_A1 __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_llrint)
-    return __builtin_llrint((double)__lcpp_x);
+    return __builtin_llrint((double)__x);
 #else
-    return ::llrint((double)__lcpp_x);
+    return ::llrint((double)__x);
 #endif
 }
 
 // llround
 
-inline _LIBCPP_HIDE_FROM_ABI long long llround(float __lcpp_x) _NOEXCEPT
+inline _LIBCPP_HIDE_FROM_ABI long long llround(float __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_llroundf)
-    return __builtin_llroundf(__lcpp_x);
+    return __builtin_llroundf(__x);
 #else
-    return ::llroundf(__lcpp_x);
+    return ::llroundf(__x);
 #endif
 }
-inline _LIBCPP_HIDE_FROM_ABI long long llround(long double __lcpp_x) _NOEXCEPT
+inline _LIBCPP_HIDE_FROM_ABI long long llround(long double __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_llroundl)
-    return __builtin_llroundl(__lcpp_x);
+    return __builtin_llroundl(__x);
 #else
-    return ::llroundl(__lcpp_x);
+    return ::llroundl(__x);
 #endif
 }
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, long long>::type
-llround(_A1 __lcpp_x) _NOEXCEPT
+llround(_A1 __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_llround)
-    return __builtin_llround((double)__lcpp_x);
+    return __builtin_llround((double)__x);
 #else
-    return ::llround((double)__lcpp_x);
+    return ::llround((double)__x);
 #endif
 }
 
 // log1p
 
-inline _LIBCPP_HIDE_FROM_ABI float       log1p(float __lcpp_x) _NOEXCEPT       {return ::log1pf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double log1p(long double __lcpp_x) _NOEXCEPT {return ::log1pl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       log1p(float __x) _NOEXCEPT       {return ::log1pf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double log1p(long double __x) _NOEXCEPT {return ::log1pl(__x);}
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-log1p(_A1 __lcpp_x) _NOEXCEPT {return ::log1p((double)__lcpp_x);}
+log1p(_A1 __x) _NOEXCEPT {return ::log1p((double)__x);}
 
 // log2
 
-inline _LIBCPP_HIDE_FROM_ABI float       log2(float __lcpp_x) _NOEXCEPT       {return ::log2f(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double log2(long double __lcpp_x) _NOEXCEPT {return ::log2l(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       log2(float __x) _NOEXCEPT       {return ::log2f(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double log2(long double __x) _NOEXCEPT {return ::log2l(__x);}
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-log2(_A1 __lcpp_x) _NOEXCEPT {return ::log2((double)__lcpp_x);}
+log2(_A1 __x) _NOEXCEPT {return ::log2((double)__x);}
 
 // logb
 
-inline _LIBCPP_HIDE_FROM_ABI float       logb(float __lcpp_x) _NOEXCEPT       {return ::logbf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double logb(long double __lcpp_x) _NOEXCEPT {return ::logbl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       logb(float __x) _NOEXCEPT       {return ::logbf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double logb(long double __x) _NOEXCEPT {return ::logbl(__x);}
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-logb(_A1 __lcpp_x) _NOEXCEPT {return ::logb((double)__lcpp_x);}
+logb(_A1 __x) _NOEXCEPT {return ::logb((double)__x);}
 
 // lrint
 
-inline _LIBCPP_HIDE_FROM_ABI long lrint(float __lcpp_x) _NOEXCEPT
+inline _LIBCPP_HIDE_FROM_ABI long lrint(float __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_lrintf)
-    return __builtin_lrintf(__lcpp_x);
+    return __builtin_lrintf(__x);
 #else
-    return ::lrintf(__lcpp_x);
+    return ::lrintf(__x);
 #endif
 }
-inline _LIBCPP_HIDE_FROM_ABI long lrint(long double __lcpp_x) _NOEXCEPT
+inline _LIBCPP_HIDE_FROM_ABI long lrint(long double __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_lrintl)
-    return __builtin_lrintl(__lcpp_x);
+    return __builtin_lrintl(__x);
 #else
-    return ::lrintl(__lcpp_x);
+    return ::lrintl(__x);
 #endif
 }
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, long>::type
-lrint(_A1 __lcpp_x) _NOEXCEPT
+lrint(_A1 __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_lrint)
-    return __builtin_lrint((double)__lcpp_x);
+    return __builtin_lrint((double)__x);
 #else
-    return ::lrint((double)__lcpp_x);
+    return ::lrint((double)__x);
 #endif
 }
 
 // lround
 
-inline _LIBCPP_HIDE_FROM_ABI long lround(float __lcpp_x) _NOEXCEPT
+inline _LIBCPP_HIDE_FROM_ABI long lround(float __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_lroundf)
-    return __builtin_lroundf(__lcpp_x);
+    return __builtin_lroundf(__x);
 #else
-    return ::lroundf(__lcpp_x);
+    return ::lroundf(__x);
 #endif
 }
-inline _LIBCPP_HIDE_FROM_ABI long lround(long double __lcpp_x) _NOEXCEPT
+inline _LIBCPP_HIDE_FROM_ABI long lround(long double __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_lroundl)
-    return __builtin_lroundl(__lcpp_x);
+    return __builtin_lroundl(__x);
 #else
-    return ::lroundl(__lcpp_x);
+    return ::lroundl(__x);
 #endif
 }
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, long>::type
-lround(_A1 __lcpp_x) _NOEXCEPT
+lround(_A1 __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_lround)
-    return __builtin_lround((double)__lcpp_x);
+    return __builtin_lround((double)__x);
 #else
-    return ::lround((double)__lcpp_x);
+    return ::lround((double)__x);
 #endif
 }
 
 // nan
 
 // nearbyint
 
-inline _LIBCPP_HIDE_FROM_ABI float       nearbyint(float __lcpp_x) _NOEXCEPT       {return ::nearbyintf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double nearbyint(long double __lcpp_x) _NOEXCEPT {return ::nearbyintl(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       nearbyint(float __x) _NOEXCEPT       {return ::nearbyintf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double nearbyint(long double __x) _NOEXCEPT {return ::nearbyintl(__x);}
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-nearbyint(_A1 __lcpp_x) _NOEXCEPT {return ::nearbyint((double)__lcpp_x);}
+nearbyint(_A1 __x) _NOEXCEPT {return ::nearbyint((double)__x);}
 
 // nextafter
 
-inline _LIBCPP_HIDE_FROM_ABI float       nextafter(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return ::nextafterf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_HIDE_FROM_ABI long double nextafter(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return ::nextafterl(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_HIDE_FROM_ABI float       nextafter(float __x, float __y) _NOEXCEPT             {return ::nextafterf(__x, __y);}
+inline _LIBCPP_HIDE_FROM_ABI long double nextafter(long double __x, long double __y) _NOEXCEPT {return ::nextafterl(__x, __y);}
 
 template <class _A1, class _A2>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::__enable_if_t
 <
     std::is_arithmetic<_A1>::value &&
     std::is_arithmetic<_A2>::value,
     std::__promote<_A1, _A2>
 >::type
-nextafter(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+nextafter(_A1 __x, _A2 __y) _NOEXCEPT
 {
     typedef typename std::__promote<_A1, _A2>::type __result_type;
     static_assert((!(std::_IsSame<_A1, __result_type>::value &&
                      std::_IsSame<_A2, __result_type>::value)), "");
-    return ::nextafter((__result_type)__lcpp_x, (__result_type)__lcpp_y);
+    return ::nextafter((__result_type)__x, (__result_type)__y);
 }
 
 // nexttoward
 
-inline _LIBCPP_HIDE_FROM_ABI float       nexttoward(float __lcpp_x, long double __lcpp_y) _NOEXCEPT       {return ::nexttowardf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_HIDE_FROM_ABI long double nexttoward(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return ::nexttowardl(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_HIDE_FROM_ABI float       nexttoward(float __x, long double __y) _NOEXCEPT       {return ::nexttowardf(__x, __y);}
+inline _LIBCPP_HIDE_FROM_ABI long double nexttoward(long double __x, long double __y) _NOEXCEPT {return ::nexttowardl(__x, __y);}
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-nexttoward(_A1 __lcpp_x, long double __lcpp_y) _NOEXCEPT {return ::nexttoward((double)__lcpp_x, __lcpp_y);}
+nexttoward(_A1 __x, long double __y) _NOEXCEPT {return ::nexttoward((double)__x, __y);}
 
 // remainder
 
-inline _LIBCPP_HIDE_FROM_ABI float       remainder(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return ::remainderf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_HIDE_FROM_ABI long double remainder(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return ::remainderl(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_HIDE_FROM_ABI float       remainder(float __x, float __y) _NOEXCEPT             {return ::remainderf(__x, __y);}
+inline _LIBCPP_HIDE_FROM_ABI long double remainder(long double __x, long double __y) _NOEXCEPT {return ::remainderl(__x, __y);}
 
 template <class _A1, class _A2>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::__enable_if_t
 <
     std::is_arithmetic<_A1>::value &&
     std::is_arithmetic<_A2>::value,
     std::__promote<_A1, _A2>
 >::type
-remainder(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+remainder(_A1 __x, _A2 __y) _NOEXCEPT
 {
     typedef typename std::__promote<_A1, _A2>::type __result_type;
     static_assert((!(std::_IsSame<_A1, __result_type>::value &&
                      std::_IsSame<_A2, __result_type>::value)), "");
-    return ::remainder((__result_type)__lcpp_x, (__result_type)__lcpp_y);
+    return ::remainder((__result_type)__x, (__result_type)__y);
 }
 
 // remquo
 
-inline _LIBCPP_HIDE_FROM_ABI float       remquo(float __lcpp_x, float __lcpp_y, int* __lcpp_z) _NOEXCEPT             {return ::remquof(__lcpp_x, __lcpp_y, __lcpp_z);}
-inline _LIBCPP_HIDE_FROM_ABI long double remquo(long double __lcpp_x, long double __lcpp_y, int* __lcpp_z) _NOEXCEPT {return ::remquol(__lcpp_x, __lcpp_y, __lcpp_z);}
+inline _LIBCPP_HIDE_FROM_ABI float       remquo(float __x, float __y, int* __z) _NOEXCEPT             {return ::remquof(__x, __y, __z);}
+inline _LIBCPP_HIDE_FROM_ABI long double remquo(long double __x, long double __y, int* __z) _NOEXCEPT {return ::remquol(__x, __y, __z);}
 
 template <class _A1, class _A2>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::__enable_if_t
 <
     std::is_arithmetic<_A1>::value &&
     std::is_arithmetic<_A2>::value,
     std::__promote<_A1, _A2>
 >::type
-remquo(_A1 __lcpp_x, _A2 __lcpp_y, int* __lcpp_z) _NOEXCEPT
+remquo(_A1 __x, _A2 __y, int* __z) _NOEXCEPT
 {
     typedef typename std::__promote<_A1, _A2>::type __result_type;
     static_assert((!(std::_IsSame<_A1, __result_type>::value &&
                      std::_IsSame<_A2, __result_type>::value)), "");
-    return ::remquo((__result_type)__lcpp_x, (__result_type)__lcpp_y, __lcpp_z);
+    return ::remquo((__result_type)__x, (__result_type)__y, __z);
 }
 
 // rint
 
-inline _LIBCPP_HIDE_FROM_ABI float       rint(float __lcpp_x) _NOEXCEPT
+inline _LIBCPP_HIDE_FROM_ABI float       rint(float __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_rintf)
-    return __builtin_rintf(__lcpp_x);
+    return __builtin_rintf(__x);
 #else
-    return ::rintf(__lcpp_x);
+    return ::rintf(__x);
 #endif
 }
-inline _LIBCPP_HIDE_FROM_ABI long double rint(long double __lcpp_x) _NOEXCEPT
+inline _LIBCPP_HIDE_FROM_ABI long double rint(long double __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_rintl)
-    return __builtin_rintl(__lcpp_x);
+    return __builtin_rintl(__x);
 #else
-    return ::rintl(__lcpp_x);
+    return ::rintl(__x);
 #endif
 }
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-rint(_A1 __lcpp_x) _NOEXCEPT
+rint(_A1 __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_rint)
-    return __builtin_rint((double)__lcpp_x);
+    return __builtin_rint((double)__x);
 #else
-    return ::rint((double)__lcpp_x);
+    return ::rint((double)__x);
 #endif
 }
 
 // round
 
-inline _LIBCPP_HIDE_FROM_ABI float       round(float __lcpp_x) _NOEXCEPT
+inline _LIBCPP_HIDE_FROM_ABI float       round(float __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_round)
-    return __builtin_round(__lcpp_x);
+    return __builtin_round(__x);
 #else
-    return ::round(__lcpp_x);
+    return ::round(__x);
 #endif
 }
-inline _LIBCPP_HIDE_FROM_ABI long double round(long double __lcpp_x) _NOEXCEPT
+inline _LIBCPP_HIDE_FROM_ABI long double round(long double __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_roundl)
-    return __builtin_roundl(__lcpp_x);
+    return __builtin_roundl(__x);
 #else
-    return ::roundl(__lcpp_x);
+    return ::roundl(__x);
 #endif
 }
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-round(_A1 __lcpp_x) _NOEXCEPT
+round(_A1 __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_round)
-    return __builtin_round((double)__lcpp_x);
+    return __builtin_round((double)__x);
 #else
-    return ::round((double)__lcpp_x);
+    return ::round((double)__x);
 #endif
 }
 
 // scalbln
 
-inline _LIBCPP_HIDE_FROM_ABI float       scalbln(float __lcpp_x, long __lcpp_y) _NOEXCEPT       {return ::scalblnf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_HIDE_FROM_ABI long double scalbln(long double __lcpp_x, long __lcpp_y) _NOEXCEPT {return ::scalblnl(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_HIDE_FROM_ABI float       scalbln(float __x, long __y) _NOEXCEPT       {return ::scalblnf(__x, __y);}
+inline _LIBCPP_HIDE_FROM_ABI long double scalbln(long double __x, long __y) _NOEXCEPT {return ::scalblnl(__x, __y);}
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-scalbln(_A1 __lcpp_x, long __lcpp_y) _NOEXCEPT {return ::scalbln((double)__lcpp_x, __lcpp_y);}
+scalbln(_A1 __x, long __y) _NOEXCEPT {return ::scalbln((double)__x, __y);}
 
 // scalbn
 
-inline _LIBCPP_HIDE_FROM_ABI float       scalbn(float __lcpp_x, int __lcpp_y) _NOEXCEPT       {return ::scalbnf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_HIDE_FROM_ABI long double scalbn(long double __lcpp_x, int __lcpp_y) _NOEXCEPT {return ::scalbnl(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_HIDE_FROM_ABI float       scalbn(float __x, int __y) _NOEXCEPT       {return ::scalbnf(__x, __y);}
+inline _LIBCPP_HIDE_FROM_ABI long double scalbn(long double __x, int __y) _NOEXCEPT {return ::scalbnl(__x, __y);}
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-scalbn(_A1 __lcpp_x, int __lcpp_y) _NOEXCEPT {return ::scalbn((double)__lcpp_x, __lcpp_y);}
+scalbn(_A1 __x, int __y) _NOEXCEPT {return ::scalbn((double)__x, __y);}
 
 // tgamma
 
-inline _LIBCPP_HIDE_FROM_ABI float       tgamma(float __lcpp_x) _NOEXCEPT       {return ::tgammaf(__lcpp_x);}
-inline _LIBCPP_HIDE_FROM_ABI long double tgamma(long double __lcpp_x) _NOEXCEPT {return ::tgammal(__lcpp_x);}
+inline _LIBCPP_HIDE_FROM_ABI float       tgamma(float __x) _NOEXCEPT       {return ::tgammaf(__x);}
+inline _LIBCPP_HIDE_FROM_ABI long double tgamma(long double __x) _NOEXCEPT {return ::tgammal(__x);}
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-tgamma(_A1 __lcpp_x) _NOEXCEPT {return ::tgamma((double)__lcpp_x);}
+tgamma(_A1 __x) _NOEXCEPT {return ::tgamma((double)__x);}
 
 // trunc
 
-inline _LIBCPP_HIDE_FROM_ABI float       trunc(float __lcpp_x) _NOEXCEPT
+inline _LIBCPP_HIDE_FROM_ABI float       trunc(float __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_trunc)
-    return __builtin_trunc(__lcpp_x);
+    return __builtin_trunc(__x);
 #else
-    return ::trunc(__lcpp_x);
+    return ::trunc(__x);
 #endif
 }
-inline _LIBCPP_HIDE_FROM_ABI long double trunc(long double __lcpp_x) _NOEXCEPT
+inline _LIBCPP_HIDE_FROM_ABI long double trunc(long double __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_truncl)
-    return __builtin_truncl(__lcpp_x);
+    return __builtin_truncl(__x);
 #else
-    return ::truncl(__lcpp_x);
+    return ::truncl(__x);
 #endif
 }
 
 template <class _A1>
 inline _LIBCPP_HIDE_FROM_ABI
 typename std::enable_if<std::is_integral<_A1>::value, double>::type
-trunc(_A1 __lcpp_x) _NOEXCEPT
+trunc(_A1 __x) _NOEXCEPT
 {
 #if __has_builtin(__builtin_trunc)
-    return __builtin_trunc((double)__lcpp_x);
+    return __builtin_trunc((double)__x);
 #else
-    return ::trunc((double)__lcpp_x);
+    return ::trunc((double)__x);
 #endif
 }
 
 } // extern "C++"
 
 #endif // __cplusplus
 
 #else // _LIBCPP_MATH_H