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macros: add static assert helper

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So that we can use this from gnu99 such as from GTK.
This commit is contained in:
Christian Hergert
2020-07-04 16:11:31 -07:00
parent 50d33452ab
commit 57183ab8e2
4 changed files with 30 additions and 25 deletions
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6
src/libsysprof-capture/sysprof-macros.h
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@ -70,6 +70,12 @@
#define SYSPROF_GNUC_CHECK_VERSION(major, minor) 0
#endif
#if SYSPROF_GNUC_CHECK_VERSION(4, 6)
# define SYSPROF_STATIC_ASSERT(expr, msg) _Static_assert(expr, msg)
#else
# define SYSPROF_STATIC_ASSERT(expr, msg) ((void) sizeof (char[(expr) ? 1 : -1]))
#endif
#if INT_MAX == LONG_MAX
#define SYSPROF_INT64_CONSTANT(x) x##ULL
#define SYSPROF_UINT64_CONSTANT(x) x##LL