Viewing file:  float3.c (1.44 KB) -rw-r--r--
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/* Area: ffi_call
Purpose: Check float arguments with different orders.
Limitations: none.
PR: none.
Originator: From the original ffitest.c */
/* { dg-do run } */
#include "ffitest.h"
#include "float.h"
#include <math.h>
static double floating_1(float a, double b, long double c)
{
return (double) a + b + (double) c;
}
static double floating_2(long double a, double b, float c)
{
return (double) a + b + (double) c;
}
int main (void)
{
ffi_cif cif;
ffi_type *args[MAX_ARGS];
void *values[MAX_ARGS];
double rd;
float f;
double d;
long double ld;
args[0] = &ffi_type_float;
values[0] = &f;
args[1] = &ffi_type_double;
values[1] = &d;
args[2] = &ffi_type_longdouble;
values[2] = &ld;
/* Initialize the cif */
CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 3,
&ffi_type_double, args) == FFI_OK);
f = 3.14159;
d = (double)1.0/(double)3.0;
ld = 2.71828182846L;
floating_1 (f, d, ld);
ffi_call(&cif, FFI_FN(floating_1), &rd, values);
CHECK(fabs(rd - floating_1(f, d, ld)) < DBL_EPSILON);
args[0] = &ffi_type_longdouble;
values[0] = &ld;
args[1] = &ffi_type_double;
values[1] = &d;
args[2] = &ffi_type_float;
values[2] = &f;
/* Initialize the cif */
CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 3,
&ffi_type_double, args) == FFI_OK);
floating_2 (ld, d, f);
ffi_call(&cif, FFI_FN(floating_2), &rd, values);
CHECK(fabs(rd - floating_2(ld, d, f)) < DBL_EPSILON);
exit (0);
}
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