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| author | Luc Grosheintz <luc.grosheintz@gmail.com> | 2025-04-29 14:46:07 +0200 |
|---|---|---|
| committer | Jonathan Wakely <redi@gcc.gnu.org> | 2025-05-07 11:47:39 +0100 |
| commit | 369c439ca19725712426defb441663c529b27dd3 (patch) | |
| tree | 3321b642a3f06f6cf7ade9bd70b5205500802fb3 | |
| parent | 15edd7d60352d4cfa95ed1cf14e6ded041b469ba (diff) | |
| download | gcc-369c439ca19725712426defb441663c529b27dd3.zip gcc-369c439ca19725712426defb441663c529b27dd3.tar.gz gcc-369c439ca19725712426defb441663c529b27dd3.tar.bz2 | |
libstdc++: Setup internal FTM for mdspan.
Uses the FTM infrastructure to create an internal feature testing macro
for partial availability of mdspan; which is then used to hide the
contents of the header mdspan when compiling against a standard prior to
C++23.
libstdc++-v3/ChangeLog:
* include/bits/version.def: Add internal feature testing macro
__glibcxx_mdspan.
* include/bits/version.h: Regenerate.
Signed-off-by: Luc Grosheintz <luc.grosheintz@gmail.com>
| -rw-r--r-- | libstdc++-v3/include/bits/version.def | 9 | ||||
| -rw-r--r-- | libstdc++-v3/include/bits/version.h | 9 |
2 files changed, 18 insertions, 0 deletions
diff --git a/libstdc++-v3/include/bits/version.def b/libstdc++-v3/include/bits/version.def index 282667e..f4d3de8 100644 --- a/libstdc++-v3/include/bits/version.def +++ b/libstdc++-v3/include/bits/version.def @@ -1000,6 +1000,15 @@ ftms = { }; ftms = { + name = mdspan; + no_stdname = true; // FIXME: remove + values = { + v = 1; // FIXME: 202207 + cxxmin = 23; + }; +}; + +ftms = { name = ssize; values = { v = 201902; diff --git a/libstdc++-v3/include/bits/version.h b/libstdc++-v3/include/bits/version.h index bb7c047..d5d75ce 100644 --- a/libstdc++-v3/include/bits/version.h +++ b/libstdc++-v3/include/bits/version.h @@ -1114,6 +1114,15 @@ #endif /* !defined(__cpp_lib_span) && defined(__glibcxx_want_span) */ #undef __glibcxx_want_span +#if !defined(__cpp_lib_mdspan) +# if (__cplusplus >= 202100L) +# define __glibcxx_mdspan 1L +# if defined(__glibcxx_want_all) || defined(__glibcxx_want_mdspan) +# endif +# endif +#endif /* !defined(__cpp_lib_mdspan) && defined(__glibcxx_want_mdspan) */ +#undef __glibcxx_want_mdspan + #if !defined(__cpp_lib_ssize) # if (__cplusplus >= 202002L) # define __glibcxx_ssize 201902L |