-# ceil.m4 serial 7
+# ceil.m4 serial 8
dnl Copyright (C) 2007, 2009-2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
#include <math.h>
]gl_DOUBLE_MINUS_ZERO_CODE[
]gl_DOUBLE_SIGNBIT_CODE[
-int main()
+static double dummy (double f) { return 0; }
+int main (int argc, char *argv[])
{
+ double (*my_ceil) (double) = argc ? ceil : dummy;
int result = 0;
/* Test whether ceil (-0.0) is -0.0. */
- if (signbitd (minus_zerod) && !signbitd (ceil (minus_zerod)))
+ if (signbitd (minus_zerod) && !signbitd (my_ceil (minus_zerod)))
result |= 1;
/* Test whether ceil (-0.3) is -0.0. */
- if (signbitd (-0.3) && !signbitd (ceil (-0.3)))
+ if (signbitd (-0.3) && !signbitd (my_ceil (-0.3)))
result |= 2;
return result;
}