gcc/testsuite/gfortran.dg/c_by_val.c

/*  Passing from fortran to C by value, using %VAL.  */

#include <inttypes.h>

/* We used to #include <complex.h>, but this fails for some platforms
   (like cygwin) who don't have it yet.  */
#define complex __complex__
#define _Complex_I (1.0iF)

extern void f_to_f__ (float*, float, float*, float**);
extern void f_to_f8__ (double*, double, double*, double**);
extern void i_to_i__ (int*, int, int*, int**);
extern void i_to_i8__ (int64_t*, int64_t, int64_t*, int64_t**);
extern void c_to_c__ (complex float*, complex float, complex float*, complex float**);
extern void c_to_c8__ (complex double*, complex double, complex double*, complex double**);
extern void abort (void);

void
f_to_f__(float *retval, float a1, float *a2, float **a3)
{
  if ( a1 != *a2 ) abort();
  if ( a1 != **a3 ) abort();
  a1 = 0.0;
  *retval = *a2 * 2.0;
  return;
}

void
f_to_f8__(double *retval, double a1, double *a2, double **a3)
{
  if ( a1 != *a2 ) abort();
  if ( a1 != **a3 ) abort();
  a1 = 0.0;
  *retval = *a2 * 2.0;
  return;
}

void
i_to_i__(int *retval, int i1, int *i2, int **i3)
{
  if ( i1 != *i2 ) abort();
  if ( i1 != **i3 ) abort();
  i1 = 0;
  *retval = *i2 * 3;
  return;
}

void
i_to_i8__(int64_t *retval, int64_t i1, int64_t *i2, int64_t **i3)
{
  if ( i1 != *i2 ) abort();
  if ( i1 != **i3 ) abort();
  i1 = 0;
  *retval = *i2 * 3;
  return;
}

void
c_to_c__(complex float *retval, complex float c1, complex float *c2, complex float **c3)
{
  if ( c1 != *c2    ) abort();
  if ( c1 != *(*c3) ) abort();
  c1 = 0.0 + 0.0 * _Complex_I;
  *retval = (*c2) * 4.0;
  return;
}

void
c_to_c8__(complex double *retval, complex double c1, complex double *c2, complex double **c3)
{
  if ( c1 != *c2    ) abort();
  if ( c1 != *(*c3) ) abort();
  c1 = 0.0 +  0.0 * _Complex_I;;
  *retval = (*c2) * 4.0;
  return;
}