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view gcc/testsuite/gcc.dg/pr68412.c @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
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/* PR c/68412 */ /* { dg-do compile } */ /* { dg-options "-Wall -Wextra" } */ #define M (sizeof (int) * __CHAR_BIT__) int fn1 (int i) { return i == (-1 << 8); /* { dg-warning "left shift of negative value" } */ } int fn2 (int i) { return i == (1 << M); /* { dg-warning "left shift count" } */ } int fn3 (int i) { return i == 10 << (M - 1); /* { dg-warning "requires" } */ } int fn4 (int i) { return i == 1 << -1; /* { dg-warning "left shift count" } */ } int fn5 (int i) { return i == 1 >> M; /* { dg-warning "right shift count" } */ } int fn6 (int i) { return i == 1 >> -1; /* { dg-warning "right shift count" } */ }