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/* Area:        ffi_call

   Purpose:     Check return value long double.

   Limitations: none.

   PR:          none.

   Originator:  From the original ffitest.c  */

/* { dg-do run } */

#include "ffitest.h"

#include "float.h"

static long double ldblit(float f)

{

  return (long double) (((long double) f)/ (long double) 3.0);

}

int main (void)

{

  ffi_cif cif;

  ffi_type *args[MAX_ARGS];

  void *values[MAX_ARGS];

  float f;

  long double ld;

  args[0] = &ffi_type_float;

  values[0] = &f;

  /* Initialize the cif */

  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1,

                     &ffi_type_longdouble, args) == FFI_OK);

  f = 3.14159;

#if 1

  /* This is ifdef'd out for now. long double support under SunOS/gcc

     is pretty much non-existent.  You'll get the odd bus error in library

     routines like printf().  */

  printf ("%Lf\n", ldblit(f));

#endif

  ld = 666;

  ffi_call(&cif, FFI_FN(ldblit), &ld, values);

#if 1

  /* This is ifdef'd out for now. long double support under SunOS/gcc

     is pretty much non-existent.  You'll get the odd bus error in library

     routines like printf().  */

  printf ("%Lf, %Lf, %Lf, %Lf\n", ld, ldblit(f), ld - ldblit(f), LDBL_EPSILON);

#endif

  /* These are not always the same!! Check for a reasonable delta */

  /*@-realcompare@*/

  if (ld - ldblit(f) < LDBL_EPSILON)

    /*@=realcompare@*/

    puts("long double return value tests ok!");

  else

    CHECK(0);

  exit(0);

}