shared/c-siphash: reimport

git subtree pull --prefix shared/c-stdaux git@github.com:c-util/c-stdaux.git master --squash
This commit is contained in:
Thomas Haller 2021-01-15 11:16:25 +01:00
commit cda8badc57
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@ -84,7 +84,10 @@ extern "C" {
*
* Return: Evaluates to @_expr.
*/
#define C_EXPR_ASSERT(_expr, _assertion, _message) \
#if defined(__COVERITY__) // Coverity cannot const-fold __builtin_choose_expr()
# define C_EXPR_ASSERT(_expr, _assertion, _message) (_expr)
#else
# define C_EXPR_ASSERT(_expr, _assertion, _message) \
/* indentation and line-split to get better diagnostics */ \
(__builtin_choose_expr( \
!!(1 + 0 * sizeof( \
@ -95,6 +98,7 @@ _Static_assert(_assertion, _message); \
(_expr), \
((void)0) \
))
#endif
/**
* C_STRINGIFY() - stringify a token, but evaluate it first