mirror of git://gcc.gnu.org/git/gcc.git
15 lines
514 B
C
15 lines
514 B
C
/* PR c/60087 */
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/* { dg-do compile } */
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/* { dg-options "-Wsign-compare" } */
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void
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foo (unsigned int ui, int i)
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{
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const unsigned char uc = 0;
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_Bool b;
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b = 0 != ~uc; /* { dg-warning "9:promoted ~unsigned is always non-zero" } */
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b = 2 != ~uc; /* { dg-warning "9:comparison of promoted ~unsigned with constant" } */
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b = uc == ~uc; /* { dg-warning "10:comparison of promoted ~unsigned with unsigned" } */
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b = i == ui; /* { dg-warning "9:comparison of integer expressions of different signedness" } */
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}
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