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| -rw-r--r-- | src/basic/util.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/basic/util.h b/src/basic/util.h index 4a81243cc..825f04235 100644 --- a/src/basic/util.h +++ b/src/basic/util.h @@ -111,6 +111,14 @@ static inline void qsort_safe(void *base, size_t nmemb, size_t size, comparison_ qsort(base, nmemb, size, compar); } +/* A wrapper around the above, but that adds typesafety: the element size is automatically derived from the type and so + * is the prototype for the comparison function */ +#define typesafe_qsort(p, n, func) \ + ({ \ + int (*_func_)(const typeof(p[0])*, const typeof(p[0])*) = func; \ + qsort_safe((p), (n), sizeof((p)[0]), (__compar_fn_t) _func_); \ + }) + /** * Normal memcpy requires src to be nonnull. We do nothing if n is 0. */ |