/* Area: ffi_call Purpose: Check return value double. Limitations: none. PR: none. Originator: From the original ffitest.c */ /* { dg-do run } */ #include "ffitest.h" #include "float.h" static double dblit(float f) { return f/3.0; } int main (void) { ffi_cif cif; ffi_type *args[MAX_ARGS]; void *values[MAX_ARGS]; float f; double d; args[0] = &ffi_type_float; values[0] = &f; /* Initialize the cif */ CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1, &ffi_type_double, args) == FFI_OK); f = 3.14159; ffi_call(&cif, FFI_FN(dblit), &d, values); /* These are not always the same!! Check for a reasonable delta */ CHECK(d - dblit(f) < DBL_EPSILON); exit(0); }