#include <math.h>
+#include <float.h>
#include <stdio.h>
#include <stdlib.h>
} \
while (0)
+/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
+ So we use minus_zero instead.
+ Note that the expression -LDBL_MIN * LDBL_MIN does not work on other
+ platforms, such as when cross-compiling to PowerPC on MacOS X 10.5. */
+#if defined __hpux || defined __sgi
+long double minus_zero = -LDBL_MIN * LDBL_MIN;
+#else
+long double minus_zero = -0.0L;
+#endif
+
int
main ()
{
/* Zero. */
ASSERT (truncl (0.0L) == 0.0L);
- ASSERT (truncl (-0.0L) == 0.0L);
+ ASSERT (truncl (minus_zero) == 0.0L);
/* Positive numbers. */
ASSERT (truncl (0.3L) == 0.0L);
ASSERT (truncl (0.7L) == 0.0L);