48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
/* Test for integer promotion rules: C90 subset of types. */
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/* Origin: Joseph Myers <jsm@polyomino.org.uk> */
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/* { dg-do compile } */
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/* { dg-options "-std=iso9899:1990 -pedantic-errors" } */
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#include <limits.h>
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#define CHECK(T1, T2, TC) \
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do { \
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T1 a = 0; \
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T2 b = 0; \
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TC *c = 0; \
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__typeof__(a+b) *d = 0; \
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c = d; \
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d = c; \
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} while (0)
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void
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f (void)
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{
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/* One type is unsigned long. */
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CHECK(unsigned long, unsigned long, unsigned long);
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CHECK(unsigned int, unsigned long, unsigned long);
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CHECK(unsigned long, unsigned int, unsigned long);
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CHECK(int, unsigned long, unsigned long);
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CHECK(long, unsigned long, unsigned long);
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CHECK(unsigned long, int, unsigned long);
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CHECK(unsigned long, long, unsigned long);
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/* long and unsigned int. */
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#if LONG_MAX >= UINT_MAX
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CHECK(unsigned int, long, long);
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CHECK(long, unsigned int, long);
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#else
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CHECK(unsigned int, long, unsigned long);
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CHECK(long, unsigned int, unsigned long);
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#endif
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/* One type is long. */
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CHECK(long, long, long);
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CHECK(int, long, long);
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CHECK(long, int, long);
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/* One type is unsigned int. */
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CHECK(unsigned int, unsigned int, unsigned int);
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CHECK(int, unsigned int, unsigned int);
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CHECK(unsigned int, int, unsigned int);
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/* Otherwise int. */
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CHECK(int, int, int);
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}
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