+2001-01-05 Alexandre Oliva <aoliva@redhat.com>
+
+ * gcc.c-torture/execute/991228-1.c: Take word endianness into
+ account.
+
2001-01-05 Joseph S. Myers <jsm28@cam.ac.uk>
* gcc.c-torture/execute/builtin-complex-1.c: New test.
__extension__ union { double d; int i[2]; } u = { d: -0.25 };
+/* This assumes the endianness of words in a long long is the same as
+ that for doubles, which doesn't hold for a few platforms, but we
+ can probably special case them here, as appropriate. */
+long long endianness_test = 1;
+#define MSW (*(int*)&endianness_test)
+
int
signbit(double x)
{
__extension__ union { double d; int i[2]; } u = { d: x };
- return u.i[0] < 0;
+ return u.i[MSW] < 0;
}
int main(void)
{
- if (2*sizeof(int) != sizeof(double) || u.i[0] >= 0)
+ if (2*sizeof(int) != sizeof(double) || u.i[MSW] >= 0)
exit(0);
if (!signbit(-0.25))