* [PATCH] Deprecate std::__is_nullptr_t type trait
@ 2019-08-14 20:20 Jonathan Wakely
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From: Jonathan Wakely @ 2019-08-14 20:20 UTC (permalink / raw)
To: libstdc++, gcc-patches
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This non-standard extension is redundant and unused by the library.
* include/std/type_traits (__is_nullptr_t): Add deprecated attribute.
We support std::is_null_pointer so don't need a non-standard trait
that does the same thing.
Tested x86_64-linux, committed to trunk.
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commit 8068073ad959c806a925b6c031965f6db6b70c90
Author: Jonathan Wakely <jwakely@redhat.com>
Date: Wed Aug 14 12:26:24 2019 +0100
Deprecate std::__is_nullptr_t type trait
This non-standard extension is redundant and unused by the library.
* include/std/type_traits (__is_nullptr_t): Add deprecated attribute.
diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits
index b31c26ab381..d3f853d4ce2 100644
--- a/libstdc++-v3/include/std/type_traits
+++ b/libstdc++-v3/include/std/type_traits
@@ -597,11 +597,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
: public __is_null_pointer_helper<typename remove_cv<_Tp>::type>::type
{ };
- /// __is_nullptr_t (extension).
+ /// __is_nullptr_t (deprecated extension).
template<typename _Tp>
struct __is_nullptr_t
: public is_null_pointer<_Tp>
- { };
+ { } _GLIBCXX_DEPRECATED;
// Composite type categories.
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2019-08-14 20:20 [PATCH] Deprecate std::__is_nullptr_t type trait Jonathan Wakely
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