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From: "manu at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/35903] false Warray-bounds warning when passing quoted string to function strcmp(arg,"no"); Date: Sat, 20 Feb 2010 00:19:00 -0000 [thread overview] Message-ID: <20100220001914.5572.qmail@sourceware.org> (raw) In-Reply-To: <bug-35903-12775@http.gcc.gnu.org/bugzilla/> ------- Comment #10 from manu at gcc dot gnu dot org 2010-02-20 00:19 ------- Reduced testcase: extern int strlen (__const char *__s); int echo (int); int main(int argc, char **argv) { echo (({ int __s1_len, __s2_len; (__builtin_constant_p (argv[0]) && __builtin_constant_p ("AA") && (__s1_len = strlen (argv[0]), __s2_len = strlen ("AA"), (!((int)(const void *)((argv[0]) + 1) - (int)(const void *)(argv[0]) == 1) || __s1_len >= 4) && (!((int)(const void *)(("AA") + 1) - (int)(const void *)("AA") == 1) || __s2_len >= 4)) ? 1 : (__builtin_constant_p (argv[0]) && ((int)(const void *)((argv[0]) + 1) - (int)(const void *)(argv[0]) == 1) && (__s1_len = strlen (argv[0]), __s1_len < 4) ? 1 : (__builtin_constant_p ("AA") && ((int)(const void *)(("AA") + 1) - (int)(const void *)("AA") == 1) && (__s2_len = strlen ("AA"), __s2_len < 4) ? (__builtin_constant_p (argv[0]) && ((int)(const void *)((argv[0]) + 1) - (int)(const void *)(argv[0]) == 1) ? 1 : (({ __const unsigned char *__s1 = (__const unsigned char *) (__const char *) (argv[0]); register int __result = __s1[0] - ((__const unsigned char *) (__const char *) ("AA"))[0]; if (__s2_len > 0 && __result == 0) { __result = (__s1[1] - ((__const unsigned char *) (__const char *) ("AA"))[1]); if (__s2_len > 1 && __result == 0) { __result = (__s1[2] - ((__const unsigned char *) (__const char *) ("AA"))[2]); if (__s2_len > 2 && __result == 0) __result = (__s1[3] - ((__const unsigned char *) (__const char *) ("AA"))[3]); } } __result; }))) : 0))); })); return 0; } -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35903
prev parent reply other threads:[~2010-02-20 0:19 UTC|newest] Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top 2008-04-10 18:44 [Bug c/35903] New: false " rsa at us dot ibm dot com 2008-04-10 18:58 ` [Bug c/35903] " rsa at us dot ibm dot com 2008-04-10 18:59 ` rsa at us dot ibm dot com 2009-10-16 16:51 ` [Bug middle-end/35903] " cepeda at gmail dot com 2009-10-17 11:03 ` manu at gcc dot gnu dot org 2009-10-22 17:56 ` manu at gcc dot gnu dot org 2009-10-22 18:30 ` cepeda at gmail dot com 2009-10-22 18:32 ` cepeda at gmail dot com 2010-01-02 19:24 ` [Bug middle-end/35903] false uninitialized " rguenth at gcc dot gnu dot org 2010-02-19 23:56 ` [Bug middle-end/35903] false Warray-bounds " manu at gcc dot gnu dot org 2010-02-20 0:19 ` manu at gcc dot gnu dot org [this message]
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