Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/uninit-20.c @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | 04ced10e8804 |
children |
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/* Spurious uninitialized variable warnings, from gdb */ /* { dg-do compile } */ /* { dg-options "-O2 -Wuninitialized" } */ struct os { struct o *o; }; struct o { struct o *next; struct os *se; }; void f(struct o *o){ struct os *s; if(o) s = o->se; while(o && s == o->se){ s++; // here `o' is non-zero and thus s is initialized s == o->se // `?' is essential, `if' does not trigger the warning ? (o = o->next, o ? s = o->se : 0) : 0; } }