10 lines
476 B
C
10 lines
476 B
C
/* Test warning for comparison non-null address with null pointer constant. */
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/* Origin: Pawel Sikora <pluto@agmk.net> */
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/* { dg-do compile } */
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/* { dg-options "-Waddress" } */
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extern void z();
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void f() { if ( z ) z(); } /* { dg-warning "always evaluate as" } */
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void g() { if ( z != 0 ) z(); } /* { dg-warning "the comparison will always evaluate as 'true'" } */
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void h() { if ( z != (void*)0 ) z(); } /* { dg-warning "the comparison will always evaluate as 'true'" } */
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