Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/c-c++-common/Wpointer-compare-1.c @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children | 1830386684a0 |
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/* PR c++/64767 */ /* { dg-do compile } */ /* { dg-options "-Wpointer-compare" } */ /* { dg-additional-options "-std=c++03" { target c++ } } */ int f1 (int *p, int **q) { int r = 0; r += p == '\0'; /* { dg-warning "comparison between pointer and zero character" } */ r += p == L'\0'; /* { dg-warning "comparison between pointer and zero character" } */ r += p != '\0'; /* { dg-warning "comparison between pointer and zero character" } */ r += p != L'\0'; /* { dg-warning "comparison between pointer and zero character" } */ r += '\0' == p; /* { dg-warning "comparison between pointer and zero character" } */ r += L'\0' == p; /* { dg-warning "comparison between pointer and zero character" } */ r += '\0' != p; /* { dg-warning "comparison between pointer and zero character" } */ r += L'\0' != p; /* { dg-warning "comparison between pointer and zero character" } */ r += q == '\0'; /* { dg-warning "comparison between pointer and zero character" } */ r += q == L'\0'; /* { dg-warning "comparison between pointer and zero character" } */ r += q != '\0'; /* { dg-warning "comparison between pointer and zero character" } */ r += q != L'\0'; /* { dg-warning "comparison between pointer and zero character" } */ r += '\0' == q; /* { dg-warning "comparison between pointer and zero character" } */ r += L'\0' == q; /* { dg-warning "comparison between pointer and zero character" } */ r += '\0' != q; /* { dg-warning "comparison between pointer and zero character" } */ r += L'\0' != q; /* { dg-warning "comparison between pointer and zero character" } */ return r; } int f2 (int *p) { int r = 0; /* Keep quiet. */ r += p == (void *) 0; r += p != (void *) 0; r += (void *) 0 == p; r += (void *) 0 != p; r += p == 0; r += p != 0; r += 0 == p; r += 0 != p; return r; } int f3 (int *p) { int r = 0; r += p == (char) 0; /* { dg-warning "comparison between pointer and zero character" } */ r += p != (char) 0; /* { dg-warning "comparison between pointer and zero character" } */ r += (char) 0 == p; /* { dg-warning "comparison between pointer and zero character" } */ r += (char) 0 != p; /* { dg-warning "comparison between pointer and zero character" } */ return r; }