18 lines
853 B
C
18 lines
853 B
C
// RUN: %clang_cc1 -fsyntax-only -verify %s
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void f(int x) {
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char foo[10];
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int bar[20];
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char qux[30];
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(void)sizeof(bar + 10); // expected-warning{{sizeof on pointer operation will return size of 'int *' instead of 'int [20]'}}
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(void)sizeof(foo - 20); // expected-warning{{sizeof on pointer operation will return size of 'char *' instead of 'char [10]'}}
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(void)sizeof(bar - x); // expected-warning{{sizeof on pointer operation will return size of 'int *' instead of 'int [20]'}}
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(void)sizeof(foo + x); // expected-warning{{sizeof on pointer operation will return size of 'char *' instead of 'char [10]'}}
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// This is ptrdiff_t.
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(void)sizeof(foo - qux); // no-warning
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(void)sizeof(foo, x); // no-warning
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(void)sizeof(x, foo); // expected-warning{{sizeof on pointer operation will return size of 'char *' instead of 'char [10]'}}
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}
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