Mercurial > hg > CbC > CbC_gcc
diff gcc/testsuite/gcc.dg/Wstringop-overflow-26.c @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
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date | Thu, 13 Feb 2020 11:34:05 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/testsuite/gcc.dg/Wstringop-overflow-26.c Thu Feb 13 11:34:05 2020 +0900 @@ -0,0 +1,20 @@ +/* PR middle-end/79221 - missing -Wstringop-overflow= on a strcat overflow + { dg-do compile } + { dg-options "-O2 -Wall" } */ + +extern char* strcat (char*, const char*); + +char d[3]; + +void f (int i) +{ + const char *s = i < 0 ? "01234567" : "89abcd"; + strcat (d, s); // { dg-warning "'strcat' writing between 7 and 9 bytes into a region of size 3" } */ +} + + +void g (int i) +{ + const char *s = i < 0 ? "12345678" : "87654321"; + strcat (d, s); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } +}