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| author | Dylan Baker <dylan@pnwbakers.com> | 2021-08-08 16:29:01 -0700 |
|---|---|---|
| committer | Jussi Pakkanen <jpakkane@gmail.com> | 2021-08-11 21:54:16 +0300 |
| commit | 0b97d585480e973d8b149618901f7a4ddfa1a906 (patch) | |
| tree | 6d7641e277f9c7570a377635c1b5312f58aa535e /docs/markdown/snippets | |
| parent | 042adba204adeb8599e6ce516e0615f9a7b1f9c0 (diff) | |
| download | meson-0b97d585480e973d8b149618901f7a4ddfa1a906.zip meson-0b97d585480e973d8b149618901f7a4ddfa1a906.tar.gz meson-0b97d585480e973d8b149618901f7a4ddfa1a906.tar.bz2 | |
compilers/c++: Add MSVC option to make the __cplusplus define accurate
Otherwise it always returns the value for c++98, starting with MSVC 2017
15.7 or later. Earlier versions are not affected by this mis-feature
Diffstat (limited to 'docs/markdown/snippets')
| -rw-r--r-- | docs/markdown/snippets/msvc_cplusplus_define.md | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/docs/markdown/snippets/msvc_cplusplus_define.md b/docs/markdown/snippets/msvc_cplusplus_define.md new file mode 100644 index 0000000..eabfbe8 --- /dev/null +++ b/docs/markdown/snippets/msvc_cplusplus_define.md @@ -0,0 +1,7 @@ +## MSVC now sets the __cplusplus #define accurately + +For reasons, MSVC will always return `199711L` for `__cplusplus`, even when a +newer c++ standard is explicitly requested, unless you pass a specific option to +the compiler for MSVC 2017 15.7 and newer. Older versions are unaffected by +this. Meson now always sets the option if it is available, as it is unlikley +that users want the default behavior. |