diff --git a/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.get/locale.money.get.members/get_long_double_en_US.pass.cpp b/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.get/locale.money.get.members/get_long_double_en_US.pass.cpp
--- a/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.get/locale.money.get.members/get_long_double_en_US.pass.cpp
+++ b/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.get/locale.money.get.members/get_long_double_en_US.pass.cpp
@@ -14,7 +14,6 @@
 //               ios_base::iostate& err, long double& v) const;
 
 // REQUIRES: locale.en_US.UTF-8
-// XFAIL: LIBCXX-WINDOWS-FIXME
 
 #include <locale>
 #include <ios>
@@ -47,6 +46,22 @@
 };
 #endif
 
+std::string negate(std::string s) {
+#if defined(_WIN32)
+  return "(" + s + ")";
+#else
+  return "-" + s;
+#endif
+}
+
+std::wstring negate(std::wstring s) {
+#if defined(_WIN32)
+  return L"(" + s + L")";
+#else
+  return L"-" + s;
+#endif
+}
+
 int main(int, char**)
 {
     std::ios ios(0);
@@ -76,7 +91,7 @@
             assert(ex == 0);
         }
         {   // negative one
-            std::string v = "-0.01";
+            std::string v = negate("0.01");
             typedef cpp17_input_iterator<const char*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -98,7 +113,7 @@
             assert(ex == 123456789);
         }
         {   // negative
-            std::string v = "-1,234,567.89";
+            std::string v = negate("1,234,567.89");
             typedef cpp17_input_iterator<const char*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -109,7 +124,7 @@
             assert(ex == -123456789);
         }
         {   // negative
-            std::string v = "-1234567.89";
+            std::string v = negate("1234567.89");
             typedef cpp17_input_iterator<const char*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -144,7 +159,7 @@
             std::noshowbase(ios);
         }
         {   // negative one, showbase
-            std::string v = "-$0.01";
+            std::string v = negate("$0.01");
             typedef cpp17_input_iterator<const char*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -155,7 +170,7 @@
             assert(ex == -1);
         }
         {   // negative one, showbase
-            std::string v = "-$0.01";
+            std::string v = negate("$0.01");
             std::showbase(ios);
             typedef cpp17_input_iterator<const char*> I;
             long double ex;
@@ -192,7 +207,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::string v = "-$1,234,567.89";
+            std::string v = negate("$1,234,567.89");
             std::showbase(ios);
             typedef cpp17_input_iterator<const char*> I;
             long double ex;
@@ -205,7 +220,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::string v = "-USD 1,234,567.89";
+            std::string v = negate("USD 1,234,567.89");
             std::showbase(ios);
             typedef cpp17_input_iterator<const char*> I;
             long double ex;
@@ -217,7 +232,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::string v = "-USD 1,234,567.89";
+            std::string v = negate("USD 1,234,567.89");
             typedef cpp17_input_iterator<const char*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -242,7 +257,7 @@
             assert(ex == 0);
         }
         {   // negative one
-            std::string v = "-0.01";
+            std::string v = negate("0.01");
             typedef cpp17_input_iterator<const char*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -264,7 +279,7 @@
             assert(ex == 123456789);
         }
         {   // negative
-            std::string v = "-1,234,567.89";
+            std::string v = negate("1,234,567.89");
             typedef cpp17_input_iterator<const char*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -275,7 +290,7 @@
             assert(ex == -123456789);
         }
         {   // negative
-            std::string v = "-1234567.89";
+            std::string v = negate("1234567.89");
             typedef cpp17_input_iterator<const char*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -310,7 +325,7 @@
             std::noshowbase(ios);
         }
         {   // negative one, showbase
-            std::string v = "-USD 0.01";
+            std::string v = negate("USD 0.01");
             typedef cpp17_input_iterator<const char*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -321,7 +336,7 @@
             assert(ex == -1);
         }
         {   // negative one, showbase
-            std::string v = "-USD 0.01";
+            std::string v = negate("USD 0.01");
             std::showbase(ios);
             typedef cpp17_input_iterator<const char*> I;
             long double ex;
@@ -358,7 +373,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::string v = "-USD 1,234,567.89";
+            std::string v = negate("USD 1,234,567.89");
             std::showbase(ios);
             typedef cpp17_input_iterator<const char*> I;
             long double ex;
@@ -371,7 +386,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::string v = "-$1,234,567.89";
+            std::string v = negate("$1,234,567.89");
             std::showbase(ios);
             typedef cpp17_input_iterator<const char*> I;
             long double ex;
@@ -383,7 +398,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::string v = "-$1,234,567.89";
+            std::string v = negate("$1,234,567.89");
             typedef cpp17_input_iterator<const char*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -409,7 +424,7 @@
             assert(ex == 0);
         }
         {   // negative one
-            std::wstring v = L"-0.01";
+            std::wstring v = negate(L"0.01");
             typedef cpp17_input_iterator<const wchar_t*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -431,7 +446,7 @@
             assert(ex == 123456789);
         }
         {   // negative
-            std::wstring v = L"-1,234,567.89";
+            std::wstring v = negate(L"1,234,567.89");
             typedef cpp17_input_iterator<const wchar_t*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -442,7 +457,7 @@
             assert(ex == -123456789);
         }
         {   // negative
-            std::wstring v = L"-1234567.89";
+            std::wstring v = negate(L"1234567.89");
             typedef cpp17_input_iterator<const wchar_t*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -477,7 +492,7 @@
             std::noshowbase(ios);
         }
         {   // negative one, showbase
-            std::wstring v = L"-$0.01";
+            std::wstring v = negate(L"$0.01");
             typedef cpp17_input_iterator<const wchar_t*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -488,7 +503,7 @@
             assert(ex == -1);
         }
         {   // negative one, showbase
-            std::wstring v = L"-$0.01";
+            std::wstring v = negate(L"$0.01");
             std::showbase(ios);
             typedef cpp17_input_iterator<const wchar_t*> I;
             long double ex;
@@ -525,7 +540,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::wstring v = L"-$1,234,567.89";
+            std::wstring v = negate(L"$1,234,567.89");
             std::showbase(ios);
             typedef cpp17_input_iterator<const wchar_t*> I;
             long double ex;
@@ -538,7 +553,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::wstring v = L"-USD 1,234,567.89";
+            std::wstring v = negate(L"USD 1,234,567.89");
             std::showbase(ios);
             typedef cpp17_input_iterator<const wchar_t*> I;
             long double ex;
@@ -550,7 +565,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::wstring v = L"-USD 1,234,567.89";
+            std::wstring v = negate(L"USD 1,234,567.89");
             typedef cpp17_input_iterator<const wchar_t*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -575,7 +590,7 @@
             assert(ex == 0);
         }
         {   // negative one
-            std::wstring v = L"-0.01";
+            std::wstring v = negate(L"0.01");
             typedef cpp17_input_iterator<const wchar_t*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -597,7 +612,7 @@
             assert(ex == 123456789);
         }
         {   // negative
-            std::wstring v = L"-1,234,567.89";
+            std::wstring v = negate(L"1,234,567.89");
             typedef cpp17_input_iterator<const wchar_t*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -608,7 +623,7 @@
             assert(ex == -123456789);
         }
         {   // negative
-            std::wstring v = L"-1234567.89";
+            std::wstring v = negate(L"1234567.89");
             typedef cpp17_input_iterator<const wchar_t*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -643,7 +658,7 @@
             std::noshowbase(ios);
         }
         {   // negative one, showbase
-            std::wstring v = L"-USD 0.01";
+            std::wstring v = negate(L"USD 0.01");
             typedef cpp17_input_iterator<const wchar_t*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -654,7 +669,7 @@
             assert(ex == -1);
         }
         {   // negative one, showbase
-            std::wstring v = L"-USD 0.01";
+            std::wstring v = negate(L"USD 0.01");
             std::showbase(ios);
             typedef cpp17_input_iterator<const wchar_t*> I;
             long double ex;
@@ -691,7 +706,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::wstring v = L"-USD 1,234,567.89";
+            std::wstring v = negate(L"USD 1,234,567.89");
             std::showbase(ios);
             typedef cpp17_input_iterator<const wchar_t*> I;
             long double ex;
@@ -704,7 +719,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::wstring v = L"-$1,234,567.89";
+            std::wstring v = negate(L"$1,234,567.89");
             std::showbase(ios);
             typedef cpp17_input_iterator<const wchar_t*> I;
             long double ex;
@@ -716,7 +731,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::wstring v = L"-$1,234,567.89";
+            std::wstring v = negate(L"$1,234,567.89");
             typedef cpp17_input_iterator<const wchar_t*> I;
             long double ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
diff --git a/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.get/locale.money.get.members/get_string_en_US.pass.cpp b/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.get/locale.money.get.members/get_string_en_US.pass.cpp
--- a/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.get/locale.money.get.members/get_string_en_US.pass.cpp
+++ b/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.get/locale.money.get.members/get_string_en_US.pass.cpp
@@ -14,7 +14,6 @@
 //               ios_base::iostate& err, string_type& v) const;
 
 // REQUIRES: locale.en_US.UTF-8
-// XFAIL: LIBCXX-WINDOWS-FIXME
 
 #include <locale>
 #include <ios>
@@ -47,6 +46,22 @@
 };
 #endif
 
+std::string negate(std::string s) {
+#if defined(_WIN32)
+  return "(" + s + ")";
+#else
+  return "-" + s;
+#endif
+}
+
+std::wstring negate(std::wstring s) {
+#if defined(_WIN32)
+  return L"(" + s + L")";
+#else
+  return L"-" + s;
+#endif
+}
+
 int main(int, char**)
 {
     std::ios ios(0);
@@ -76,7 +91,7 @@
             assert(ex == "0");
         }
         {   // negative one
-            std::string v = "-0.01";
+            std::string v = negate("0.01");
             typedef cpp17_input_iterator<const char*> I;
             std::string ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -98,7 +113,7 @@
             assert(ex == "123456789");
         }
         {   // negative
-            std::string v = "-1,234,567.89";
+            std::string v = negate("1,234,567.89");
             typedef cpp17_input_iterator<const char*> I;
             std::string ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -109,7 +124,7 @@
             assert(ex == "-123456789");
         }
         {   // negative
-            std::string v = "-1234567.89";
+            std::string v = negate("1234567.89");
             typedef cpp17_input_iterator<const char*> I;
             std::string ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -144,7 +159,7 @@
             std::noshowbase(ios);
         }
         {   // negative one, showbase
-            std::string v = "-$0.01";
+            std::string v = negate("$0.01");
             typedef cpp17_input_iterator<const char*> I;
             std::string ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -155,7 +170,7 @@
             assert(ex == "-1");
         }
         {   // negative one, showbase
-            std::string v = "-$0.01";
+            std::string v = negate("$0.01");
             std::showbase(ios);
             typedef cpp17_input_iterator<const char*> I;
             std::string ex;
@@ -192,7 +207,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::string v = "-$1,234,567.89";
+            std::string v = negate("$1,234,567.89");
             std::showbase(ios);
             typedef cpp17_input_iterator<const char*> I;
             std::string ex;
@@ -205,7 +220,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::string v = "-USD 1,234,567.89";
+            std::string v = negate("USD 1,234,567.89");
             std::showbase(ios);
             typedef cpp17_input_iterator<const char*> I;
             std::string ex;
@@ -218,7 +233,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::string v = "-USD 1,234,567.89";
+            std::string v = negate("USD 1,234,567.89");
             typedef cpp17_input_iterator<const char*> I;
             std::string ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -244,7 +259,7 @@
             assert(ex == "0");
         }
         {   // negative one
-            std::string v = "-0.01";
+            std::string v = negate("0.01");
             typedef cpp17_input_iterator<const char*> I;
             std::string ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -266,7 +281,7 @@
             assert(ex == "123456789");
         }
         {   // negative
-            std::string v = "-1,234,567.89";
+            std::string v = negate("1,234,567.89");
             typedef cpp17_input_iterator<const char*> I;
             std::string ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -277,7 +292,7 @@
             assert(ex == "-123456789");
         }
         {   // negative
-            std::string v = "-1234567.89";
+            std::string v = negate("1234567.89");
             typedef cpp17_input_iterator<const char*> I;
             std::string ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -312,7 +327,7 @@
             std::noshowbase(ios);
         }
         {   // negative one, showbase
-            std::string v = "-USD 0.01";
+            std::string v = negate("USD 0.01");
             typedef cpp17_input_iterator<const char*> I;
             std::string ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -323,7 +338,7 @@
             assert(ex == "-1");
         }
         {   // negative one, showbase
-            std::string v = "-USD 0.01";
+            std::string v = negate("USD 0.01");
             std::showbase(ios);
             typedef cpp17_input_iterator<const char*> I;
             std::string ex;
@@ -360,7 +375,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::string v = "-USD 1,234,567.89";
+            std::string v = negate("USD 1,234,567.89");
             std::showbase(ios);
             typedef cpp17_input_iterator<const char*> I;
             std::string ex;
@@ -373,7 +388,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::string v = "-$1,234,567.89";
+            std::string v = negate("$1,234,567.89");
             std::showbase(ios);
             typedef cpp17_input_iterator<const char*> I;
             std::string ex;
@@ -386,7 +401,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::string v = "-$1,234,567.89";
+            std::string v = negate("$1,234,567.89");
             typedef cpp17_input_iterator<const char*> I;
             std::string ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -413,7 +428,7 @@
             assert(ex == L"0");
         }
         {   // negative one
-            std::wstring v = L"-0.01";
+            std::wstring v = negate(L"0.01");
             typedef cpp17_input_iterator<const wchar_t*> I;
             std::wstring ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -435,7 +450,7 @@
             assert(ex == L"123456789");
         }
         {   // negative
-            std::wstring v = L"-1,234,567.89";
+            std::wstring v = negate(L"1,234,567.89");
             typedef cpp17_input_iterator<const wchar_t*> I;
             std::wstring ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -446,7 +461,7 @@
             assert(ex == L"-123456789");
         }
         {   // negative
-            std::wstring v = L"-1234567.89";
+            std::wstring v = negate(L"1234567.89");
             typedef cpp17_input_iterator<const wchar_t*> I;
             std::wstring ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -481,7 +496,7 @@
             std::noshowbase(ios);
         }
         {   // negative one, showbase
-            std::wstring v = L"-$0.01";
+            std::wstring v = negate(L"$0.01");
             typedef cpp17_input_iterator<const wchar_t*> I;
             std::wstring ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -492,7 +507,7 @@
             assert(ex == L"-1");
         }
         {   // negative one, showbase
-            std::wstring v = L"-$0.01";
+            std::wstring v = negate(L"$0.01");
             std::showbase(ios);
             typedef cpp17_input_iterator<const wchar_t*> I;
             std::wstring ex;
@@ -529,7 +544,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::wstring v = L"-$1,234,567.89";
+            std::wstring v = negate(L"$1,234,567.89");
             std::showbase(ios);
             typedef cpp17_input_iterator<const wchar_t*> I;
             std::wstring ex;
@@ -542,7 +557,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::wstring v = L"-USD 1,234,567.89";
+            std::wstring v = negate(L"USD 1,234,567.89");
             std::showbase(ios);
             typedef cpp17_input_iterator<const wchar_t*> I;
             std::wstring ex;
@@ -555,7 +570,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::wstring v = L"-USD 1,234,567.89";
+            std::wstring v = negate(L"USD 1,234,567.89");
             typedef cpp17_input_iterator<const wchar_t*> I;
             std::wstring ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -581,7 +596,7 @@
             assert(ex == L"0");
         }
         {   // negative one
-            std::wstring v = L"-0.01";
+            std::wstring v = negate(L"0.01");
             typedef cpp17_input_iterator<const wchar_t*> I;
             std::wstring ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -603,7 +618,7 @@
             assert(ex == L"123456789");
         }
         {   // negative
-            std::wstring v = L"-1,234,567.89";
+            std::wstring v = negate(L"1,234,567.89");
             typedef cpp17_input_iterator<const wchar_t*> I;
             std::wstring ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -614,7 +629,7 @@
             assert(ex == L"-123456789");
         }
         {   // negative
-            std::wstring v = L"-1234567.89";
+            std::wstring v = negate(L"1234567.89");
             typedef cpp17_input_iterator<const wchar_t*> I;
             std::wstring ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -649,7 +664,7 @@
             std::noshowbase(ios);
         }
         {   // negative one, showbase
-            std::wstring v = L"-USD 0.01";
+            std::wstring v = negate(L"USD 0.01");
             typedef cpp17_input_iterator<const wchar_t*> I;
             std::wstring ex;
             std::ios_base::iostate err = std::ios_base::goodbit;
@@ -660,7 +675,7 @@
             assert(ex == L"-1");
         }
         {   // negative one, showbase
-            std::wstring v = L"-USD 0.01";
+            std::wstring v = negate(L"USD 0.01");
             std::showbase(ios);
             typedef cpp17_input_iterator<const wchar_t*> I;
             std::wstring ex;
@@ -697,7 +712,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::wstring v = L"-USD 1,234,567.89";
+            std::wstring v = negate(L"USD 1,234,567.89");
             std::showbase(ios);
             typedef cpp17_input_iterator<const wchar_t*> I;
             std::wstring ex;
@@ -710,7 +725,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::wstring v = L"-$1,234,567.89";
+            std::wstring v = negate(L"$1,234,567.89");
             std::showbase(ios);
             typedef cpp17_input_iterator<const wchar_t*> I;
             std::wstring ex;
@@ -723,7 +738,7 @@
             std::noshowbase(ios);
         }
         {   // negative, showbase
-            std::wstring v = L"-$1,234,567.89";
+            std::wstring v = negate(L"$1,234,567.89");
             typedef cpp17_input_iterator<const wchar_t*> I;
             std::wstring ex;
             std::ios_base::iostate err = std::ios_base::goodbit;