gcc/testsuite/gfortran.dg/bind_c_coms_driver.c

   1 double fabs(double);
   2
   3 void test_coms(void);
   4
   5 extern void abort(void);
   6
   7 struct {double r, s; } com;     /* refers to the common block "com" */
   8 double single;                  /* refers to the common block "single" */
   9 long int mycom;                 /* refers to the common block "MYCOM" */
  10 long long int mycom2;           /* refers to the common block "MYCOM2" */
  11 struct {int i, j; } f03_com2;   /* refers to the common block "com2" */
  12
  13 int main(int argc, char **argv)
  14 {
  15   com.r = 1.0;
  16   com.s = 2.0;
  17   single = 1.0;
  18   mycom = 1;
  19   mycom2 = 2;
  20   f03_com2.i = 1;
  21   f03_com2.j = 2;
  22
  23   /* change the common block variables in F90 */
  24   test_coms();
  25
  26   if(fabs(com.r - 1.1) > 0.00000000)
  27     abort();
  28   if(fabs(com.s - 2.1) > 0.00000000)
  29     abort();
  30   if(fabs(single - 1.1) > 0.00000000)
  31     abort();
  32   if(mycom != 2)
  33     abort();
  34   if(mycom2 != 3)
  35     abort();
  36   if(f03_com2.i != 2)
  37     abort();
  38   if(f03_com2.j != 3)
  39     abort();
  40
  41   return 0;
  42 }/* end main() */