Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/Wvla-larger-than-1.c @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
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/* { dg-do compile } */ /* { dg-require-effective-target alloca } */ /* { dg-options "-Wvla-larger-than=100 -O2" } */ typedef __SIZE_TYPE__ size_t; extern void useit (char *); int num; void test_vlas (size_t num) { char str2[num]; /* { dg-warning "unbounded use" } */ useit(str2); num = 98; for (int i=0; i < 1234; ++i) { char str[num]; // OK, VLA in a loop, but it is a // known size *AND* the compiler takes // care of cleaning up between // iterations with // __builtin_stack_restore. useit(str); } }