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jeremybenn |
/* Test for integer promotion rules: extended to long long by C99. */
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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=iso9899:1999 -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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/* Same type. */
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CHECK(int, int, int);
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CHECK(unsigned int, unsigned int, unsigned int);
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CHECK(long, long, long);
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CHECK(unsigned long, unsigned long, unsigned long);
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CHECK(long long, long long, long long);
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CHECK(unsigned long long, unsigned long long, unsigned long long);
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/* Both signed. */
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CHECK(int, long, long);
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CHECK(int, long long, long long);
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CHECK(long, int, long);
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CHECK(long, long long, long long);
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CHECK(long long, int, long long);
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CHECK(long long, long, long long);
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/* Both unsigned. */
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CHECK(unsigned int, unsigned long, unsigned long);
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CHECK(unsigned int, unsigned long long, unsigned long long);
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CHECK(unsigned long, unsigned int, unsigned long);
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CHECK(unsigned long, unsigned long long, unsigned long long);
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CHECK(unsigned long long, unsigned int, unsigned long long);
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CHECK(unsigned long long, unsigned long, unsigned long long);
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/* Unsigned of greater or equal rank. */
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CHECK(int, unsigned int, unsigned int);
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CHECK(int, unsigned long, unsigned long);
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CHECK(int, unsigned long long, unsigned long long);
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CHECK(unsigned int, int, unsigned int);
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CHECK(long, unsigned long, unsigned long);
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CHECK(long, unsigned long long, unsigned long 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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CHECK(long long, unsigned long long, unsigned long long);
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CHECK(unsigned long long, int, unsigned long long);
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CHECK(unsigned long long, long, unsigned long long);
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CHECK(unsigned long long, long long, unsigned long long);
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/* Signed of greater rank. */
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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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#if LLONG_MAX >= UINT_MAX
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CHECK(unsigned int, long long, long long);
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CHECK(long long, unsigned int, long long);
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#else
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CHECK(unsigned int, long long, unsigned long long);
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CHECK(long long, unsigned int, unsigned long long);
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#endif
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#if LLONG_MAX >= ULONG_MAX
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CHECK(unsigned long, long long, long long);
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CHECK(long long, unsigned long, long long);
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#else
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CHECK(unsigned long, long long, unsigned long long);
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CHECK(long long, unsigned long, unsigned long long);
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#endif
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}
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