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| author | Alexander Monakov <amonakov@ispras.ru> | 2017-09-29 19:00:15 +0300 |
|---|---|---|
| committer | Alexander Monakov <amonakov@gcc.gnu.org> | 2017-09-29 19:00:15 +0300 |
| commit | 9e686ea1c952dd513cf98c2cec464b3533ba763c (patch) | |
| tree | 1cfc0484d5e64853823c1322638c2787aa3877ce /gcc/system.h | |
| parent | cd644ae2bc0ce62b88f786ce5a68ad0ba2509ec6 (diff) | |
| download | gcc-9e686ea1c952dd513cf98c2cec464b3533ba763c.zip gcc-9e686ea1c952dd513cf98c2cec464b3533ba763c.tar.gz gcc-9e686ea1c952dd513cf98c2cec464b3533ba763c.tar.bz2 | |
qsort comparator consistency checking
* genmodes.c (calc_wider_mode): Suppress qsort macro.
* system.h [CHECKING_P] (qsort): Redirect to qsort_chk.
(qsort_chk): Declare.
* vec.c [CHECKING_P] (qsort_chk_error): New static function.
(qsort_chk): New function.
From-SVN: r253295
Diffstat (limited to 'gcc/system.h')
| -rw-r--r-- | gcc/system.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/system.h b/gcc/system.h index 59449f1..f0664e9 100644 --- a/gcc/system.h +++ b/gcc/system.h @@ -1181,4 +1181,14 @@ helper_const_non_const_cast (const char *p) /* Get definitions of HOST_WIDE_INT. */ #include "hwint.h" +/* qsort comparator consistency checking: except in release-checking compilers, + redirect 4-argument qsort calls to qsort_chk; keep 1-argument invocations + corresponding to vec::qsort (cmp): they use C qsort internally anyway. */ +#if CHECKING_P +#define PP_5th(a1, a2, a3, a4, a5, ...) a5 +#undef qsort +#define qsort(...) PP_5th (__VA_ARGS__, qsort_chk, 3, 2, qsort, 0) (__VA_ARGS__) +void qsort_chk (void *, size_t, size_t, int (*)(const void *, const void *)); +#endif + #endif /* ! GCC_SYSTEM_H */ |