24 lines
903 B
C
24 lines
903 B
C
// RUN: %clang_cc1 -verify %s
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// expected-no-diagnostics
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/* WG14 N617: yes
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* reliable integer division
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*/
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void test(void) {
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_Static_assert(59 / 4 == 14, "we didn't truncate properly");
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_Static_assert(59 / -4 == -14, "we didn't truncate properly");
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_Static_assert(-59 / 4 == -14, "we didn't truncate properly");
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_Static_assert(-59 / -4 == 14, "we didn't truncate properly");
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// Might as well test % for the quotient.
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_Static_assert(59 % 4 == 3, "we didn't truncate properly");
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_Static_assert(59 % -4 == 3, "we didn't truncate properly");
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_Static_assert(-59 % 4 == -3, "we didn't truncate properly");
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_Static_assert(-59 % -4 == -3, "we didn't truncate properly");
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// Test the idiom for rounding up.
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_Static_assert((59 + (4 - 1)) / 4 == 15, "failed to 'round up' with the usual idiom");
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_Static_assert((59 + (4 - 1)) % 4 == 2, "failed to 'round up' with the usual idiom");
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}
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