Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/bitfld-2.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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/* Copyright (C) 2002 Free Software Foundation, Inc. Tests we warn about overly-large assignments to bitfields. Source: Neil Booth, 28 Jan 2002. */ struct bf { unsigned int a: 2; int b: 2; }; struct bf p = {4, 0}; /* { dg-warning "unsigned conversion from .int. to 'unsigned char:2' changes value from .4. to .0." } */ struct bf q = {0, 2}; /* { dg-warning "overflow in conversion from .int. to .signed char:2. changes value from .2. to .-2." } */ struct bf r = {3, -2}; /* { dg-bogus "(trunc|overflow)" } */ void foo () { p.a = 4, p.b = 0; /* { dg-warning "unsigned conversion from .int. to .unsigned char:2. changes value from .4. to .0." } */ q.a = 0, q.b = 2; /* { dg-warning "overflow in conversion from .int. to .signed char:2. changes value from .2. to .-2." } */ r.a = 3, r.b = -2; /* { dg-bogus "(trunc|overflow)" } */ }