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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.c-torture/] [execute/] [991228-1.c] - Blame information for rev 688

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Line No. Rev Author Line
1 688 jeremybenn
__extension__ union { double d; int i[2]; } u = { d: -0.25 };
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/* This assumes the endianness of words in a long long is the same as
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   that for doubles, which doesn't hold for a few platforms, but we
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   can probably special case them here, as appropriate.  */
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long long endianness_test = 1;
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#define MSW (*(int*)&endianness_test)
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int
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signbit(double x)
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{
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  __extension__ union { double d; int i[2]; } u = { d: x };
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  return u.i[MSW] < 0;
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}
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int main(void)
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{
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  if (2*sizeof(int) != sizeof(double) || u.i[MSW] >= 0)
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    exit(0);
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  if (!signbit(-0.25))
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    abort();
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  exit(0);
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}

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