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gh-91731: Don't define 'static_assert' in C++11 where is a keyword to avoid UB #93700

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Merged
merged 2 commits into from
Jun 13, 2022
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gh-91731: Don't define 'static_assert' in C++11 where is a keyword to avoid UB #93700

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gh-91731: Don't define 'static_assert' in C++11 where is a keyword to…
pablogsal Jun 10, 2022
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pablogsal Jun 11, 2022
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Co-authored-by: Adam Turner <[email protected]>
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@pablogsal @AA-Turner
pablogsal and AA-Turner committed Jun 13, 2022
commit 8f58dce4e984571091eb8869f890ef54a44f1ff2
4 changes: 3 additions & 1 deletion Include/pymacro.h
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Expand Up @@ -12,9 +12,11 @@

// static_assert is defined in glibc from version 2.16. Before it requires
// compiler support (gcc >= 4.6) and is called _Static_assert.
// In C++ 11 static_assert is a keyword, redefining is undefined behaviour.
#if (defined(__GLIBC__) \
&& (__GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ <= 16)) \
&& !defined(static_assert) && !(defined(__cplusplus) && __cplusplus >= 201103L))
&& !(defined(__cplusplus) && __cplusplus >= 201103L) \
&& !defined(static_assert))
# define static_assert _Static_assert
#endif

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