gcc/testsuite/gcc.dg/nextafter-2.c

   1 /* PR libstdc++/85466 */
   2 /* { dg-do run } */
   3 /* { dg-require-effective-target c99_runtime } */
   4 /* { dg-options "-O2 -fno-builtin" } */
   5 /* { dg-add-options ieee } */
   6
   7 #include <stdlib.h>
   8
   9 /* In order to run on systems like the PowerPC that have 3 different long
  10    double types, include math.h so it can choose what is the appropriate
  11    nextafterl function to use.
  12
  13    If we didn't use -fno-builtin for this test, the PowerPC compiler would have
  14    changed the names of the built-in functions that use long double.  The
  15    nextafter-1.c function runs with this mapping.
  16
  17    Since this test uses -fno-builtin, include math.h, so that math.h can make
  18    the appropriate choice to use.  */
  19 #include <math.h>
  20
  21 #if defined(__GLIBC__) && defined(__GLIBC_PREREQ)
  22 # if !__GLIBC_PREREQ (2, 24)
  23 /* Workaround buggy nextafterl in glibc 2.23 and earlier,
  24    see https://sourceware.org/bugzilla/show_bug.cgi?id=20205  */
  25 #  define NO_LONG_DOUBLE 1
  26 # endif
  27 #endif
  28
  29 #define _NEXT_AFTER_2
  30
  31 #include "nextafter-1.c"