[gcc(refs/users/aoliva/heads/testme)] don't use wchar_t as default in locale_conv if wchar_t is not in use
Alexandre Oliva
aoliva@gcc.gnu.org
Fri Jan 15 16:37:06 GMT 2021
https://gcc.gnu.org/g:d5c67fae7aea2627cf1aa64f0f7d73547b34e2b7
commit d5c67fae7aea2627cf1aa64f0f7d73547b34e2b7
Author: Jonathan Wakely <jwakely@redhat.com>
Date: Thu Jan 14 19:23:22 2021 -0300
don't use wchar_t as default in locale_conv if wchar_t is not in use
Diff:
---
libstdc++-v3/include/bits/locale_conv.h | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/libstdc++-v3/include/bits/locale_conv.h b/libstdc++-v3/include/bits/locale_conv.h
index 0e409da9876..d8a4d0851f4 100644
--- a/libstdc++-v3/include/bits/locale_conv.h
+++ b/libstdc++-v3/include/bits/locale_conv.h
@@ -222,11 +222,17 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
#endif // _GLIBCXX_USE_CHAR8_T
#ifdef _GLIBCXX_USE_WCHAR_T
+# define _GLIBCXX_WCHAR_DEFAULT_TEMPL_ARG = wchar_t
+#else
+// wstring_convert and wbuffer_convert are still defined for targets without
+// wchar_t support, but the second template argument must be given explictly.
+# define _GLIBCXX_WCHAR_DEFAULT_TEMPL_ARG
+#endif
_GLIBCXX_BEGIN_NAMESPACE_CXX11
/// String conversions
- template<typename _Codecvt, typename _Elem = wchar_t,
+ template<typename _Codecvt, typename _Elem _GLIBCXX_WCHAR_DEFAULT_TEMPL_ARG,
typename _Wide_alloc = allocator<_Elem>,
typename _Byte_alloc = allocator<char>>
class wstring_convert
@@ -382,7 +388,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CXX11
_GLIBCXX_END_NAMESPACE_CXX11
/// Buffer conversions
- template<typename _Codecvt, typename _Elem = wchar_t,
+ template<typename _Codecvt, typename _Elem _GLIBCXX_WCHAR_DEFAULT_TEMPL_ARG,
typename _Tr = char_traits<_Elem>>
class wbuffer_convert : public basic_streambuf<_Elem, _Tr>
{
@@ -606,8 +612,6 @@ _GLIBCXX_END_NAMESPACE_CXX11
bool _M_always_noconv;
};
-#endif // _GLIBCXX_USE_WCHAR_T
-
/// @} group locales
_GLIBCXX_END_NAMESPACE_VERSION
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