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util: add qsort_r_safe(), similar to qsort_safe()

This commit is contained in:
Lennart Poettering 2018-04-11 19:51:39 +02:00
parent 3f536d5bae
commit adea407d11
1 changed files with 8 additions and 0 deletions
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8
src/basic/util.h
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@ -111,6 +111,14 @@ static inline void qsort_safe(void *base, size_t nmemb, size_t size, comparison_
qsort_safe((p), (n), sizeof((p)[0]), (__compar_fn_t) _func_); \
})
static inline void qsort_r_safe(void *base, size_t nmemb, size_t size, int (*compar)(const void*, const void*, void*), void *userdata) {
if (nmemb <= 1)
return;
assert(base);
qsort_r(base, nmemb, size, compar, userdata);
}
/**
* Normal memcpy requires src to be nonnull. We do nothing if n is 0.
*/