41 lines
1.0 KiB
C
41 lines
1.0 KiB
C
// RUN: clang-cc -Wall -fsyntax-only -verify %s
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#include <limits.h>
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enum {
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X = 1 << 0,
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Y = 1 << 1,
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Z = 1 << 2
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};
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void test() {
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char c;
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c = 0 << 0;
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c = 0 << 1;
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c = 1 << 0;
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c = 1 << -0;
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c = 1 >> -0;
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c = 1 << -1; // expected-warning {{shift count is negative}}
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c = 1 >> -1; // expected-warning {{shift count is negative}}
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c = 1 << c;
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c <<= 0;
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c >>= 0;
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c <<= 1;
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c >>= 1;
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c <<= -1; // expected-warning {{shift count is negative}}
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c >>= -1; // expected-warning {{shift count is negative}}
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c <<= 999999; // expected-warning {{shift count >= width of type}}
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c >>= 999999; // expected-warning {{shift count >= width of type}}
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c <<= CHAR_BIT; // expected-warning {{shift count >= width of type}}
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c >>= CHAR_BIT; // expected-warning {{shift count >= width of type}}
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c <<= CHAR_BIT+1; // expected-warning {{shift count >= width of type}}
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c >>= CHAR_BIT+1; // expected-warning {{shift count >= width of type}}
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(void)((long)c << CHAR_BIT);
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}
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#define a 0
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#define ashift 8
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enum { b = (a << ashift) };
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