gcc/testsuite/gcc.dg/cproj-fails-with-broken-glibc.c

   1 /* Copyright (C) 2010  Free Software Foundation.
   2
   3    Check the runtime behavior of the C library's cproj() function and
   4    whether it follows the standard.  Versions of GLIBC through 2.11.1
   5    had an incorrect implementation which will conflict with GCC's
   6    builtin cproj().  GLIBC 2.12+ should be okay.
   7
   8    Origin: Kaveh R. Ghazi,  April 20, 2010.  */
   9
  10 /* { dg-do run } */
  11 /* { dg-options "-fno-builtin-cproj" } */
  12 /* { dg-add-options c99_runtime } */
  13 /* { dg-require-effective-target c99_runtime } */
  14
  15 extern void abort(void);
  16 extern void exit(int);
  17 double _Complex cproj(double _Complex);
  18
  19 int main (void)
  20 {
  21   if (cproj (2+3i) != 2+3i)
  22     abort();
  23
  24   exit(0);
  25 }