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| author | redi <redi@138bc75d-0d04-0410-961f-82ee72b054a4> | 2017-10-20 18:02:19 +0000 |
|---|---|---|
| committer | redi <redi@138bc75d-0d04-0410-961f-82ee72b054a4> | 2017-10-20 18:02:19 +0000 |
| commit | 65853df112401300135efd650db5dc0ead05a56d (patch) | |
| tree | 52ac69dd374b7eaaa3a9115c5083d58842332b1f | |
| parent | 4f0935fa35dc87ca9105ed6b6a595d2673e240d9 (diff) | |
| download | gcc-65853df112401300135efd650db5dc0ead05a56d.tar.gz | |
Define __cpp_lib_byte feature-test macro
* include/c_global/cstddef: Define __cpp_lib_byte feature-test macro.
* testsuite/18_support/byte/requirements.cc: Check macro.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@253952 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | libstdc++-v3/ChangeLog | 5 | ||||
| -rw-r--r-- | libstdc++-v3/include/c_global/cstddef | 4 | ||||
| -rw-r--r-- | libstdc++-v3/testsuite/18_support/byte/requirements.cc | 6 |
3 files changed, 14 insertions, 1 deletions
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog index ba43a4b3708..179361d9223 100644 --- a/libstdc++-v3/ChangeLog +++ b/libstdc++-v3/ChangeLog @@ -1,3 +1,8 @@ +2017-10-20 Jonathan Wakely <jwakely@redhat.com> + + * include/c_global/cstddef: Define __cpp_lib_byte feature-test macro. + * testsuite/18_support/byte/requirements.cc: Check macro. + 2017-10-19 Jonathan Wakely <jwakely@redhat.com> * testsuite/experimental/filesystem/iterators/ diff --git a/libstdc++-v3/include/c_global/cstddef b/libstdc++-v3/include/c_global/cstddef index 09754ee45da..11d268b7f81 100644 --- a/libstdc++-v3/include/c_global/cstddef +++ b/libstdc++-v3/include/c_global/cstddef @@ -57,9 +57,11 @@ namespace std } #endif -#if __cplusplus > 201402L +#if __cplusplus >= 201703L namespace std { +#define __cpp_lib_byte 201603 + /// std::byte enum class byte : unsigned char {}; diff --git a/libstdc++-v3/testsuite/18_support/byte/requirements.cc b/libstdc++-v3/testsuite/18_support/byte/requirements.cc index 4cb05df0405..74c8b64d6ce 100644 --- a/libstdc++-v3/testsuite/18_support/byte/requirements.cc +++ b/libstdc++-v3/testsuite/18_support/byte/requirements.cc @@ -20,6 +20,12 @@ #include <cstddef> +#ifndef __cpp_lib_byte +# error "Feature-test macro for byte missing" +#elif __cpp_lib_byte != 201603 +# error "Feature-test macro for byte has wrong value" +#endif + static_assert( sizeof(std::byte) == sizeof(unsigned char) ); static_assert( alignof(std::byte) == alignof(unsigned char) ); |