cls_longdouble_va.c [plain text]
#include "ffitest.h"
static void
cls_longdouble_va_fn(ffi_cif* cif, void* resp, void** args, void* userdata)
{
char* format = *(char**)args[0];
long double ldValue = *(long double*)args[1];
*(ffi_arg*)resp = printf(format, ldValue);
}
int main (void)
{
ffi_cif cif;
#ifndef USING_MMAP
static ffi_closure cl;
#endif
ffi_closure *pcl;
void* args[3];
ffi_type* arg_types[3];
#ifdef USING_MMAP
pcl = allocate_mmap (sizeof(ffi_closure));
#else
pcl = &cl;
#endif
char* format = "%L.1f\n";
long double ldArg = 7;
ffi_arg res = 0;
arg_types[0] = &ffi_type_pointer;
arg_types[1] = &ffi_type_longdouble;
arg_types[2] = NULL;
CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &ffi_type_sint,
arg_types) == FFI_OK);
args[0] = &format;
args[1] = &ldArg;
args[2] = NULL;
ffi_call(&cif, FFI_FN(printf), &res, args);
printf("res: %d\n", res);
CHECK(ffi_prep_closure(pcl, &cif, cls_longdouble_va_fn, NULL) == FFI_OK);
res = ((int(*)(char*, long double))(pcl))(format, ldArg);
printf("res: %d\n", res);
exit(0);
}