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util: introduce typesafe_qsort_r()

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This commit is contained in:
Yu Watanabe 2018-09-18 08:58:21 +09:00
parent 93bab28895
commit 5532395be7
1 changed files with 8 additions and 2 deletions
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10
src/basic/util.h
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@ -88,7 +88,7 @@ static inline void* bsearch_safe(const void *key, const void *base,
* Normal qsort requires base to be nonnull. Here were require
* that only if nmemb > 0.
*/
static inline void qsort_safe(void *base, size_t nmemb, size_t size, comparison_fn_t compar) {
static inline void qsort_safe(void *base, size_t nmemb, size_t size, __compar_fn_t compar) {
if (nmemb <= 1)
return;
@ -104,7 +104,7 @@ 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) {
static inline void qsort_r_safe(void *base, size_t nmemb, size_t size, __compar_d_fn_t compar, void *userdata) {
if (nmemb <= 1)
return;
@ -112,6 +112,12 @@ static inline void qsort_r_safe(void *base, size_t nmemb, size_t size, int (*com
qsort_r(base, nmemb, size, compar, userdata);
}
#define typesafe_qsort_r(p, n, func, userdata) \
({ \
int (*_func_)(const typeof(p[0])*, const typeof(p[0])*, typeof(userdata)) = func; \
qsort_r_safe((p), (n), sizeof((p)[0]), (__compar_d_fn_t) _func_, userdata); \
})
/* Normal memcpy requires src to be nonnull. We do nothing if n is 0. */
static inline void memcpy_safe(void *dst, const void *src, size_t n) {
if (n == 0)