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add QSORT_S 

Add the macro QSORT_S, a convenient wrapper for qsort_s() that infers
the size of the array elements and dies on error.

Basically all possible errors are programming mistakes (passing NULL as
base of a non-empty array, passing NULL as comparison function,
out-of-bounds accesses), so terminating the program should be acceptable
for most callers.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
René Scharfe 2017-01-22 18:52:13 +01:00 committed by Junio C Hamano
parent 04ee8b875b
commit 3ca8699409
1 changed files with 5 additions and 0 deletions
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5
git-compat-util.h
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@ -994,6 +994,11 @@ int git_qsort_s(void *base, size_t nmemb, size_t size,
#define qsort_s git_qsort_s
#endif
#define QSORT_S(base, n, compar, ctx) do { \
if (qsort_s((base), (n), sizeof(*(base)), compar, ctx)) \
die("BUG: qsort_s() failed"); \
} while (0)
#ifndef REG_STARTEND
#error "Git requires REG_STARTEND support. Compile with NO_REGEX=NeedsStartEnd"
#endif