Viewing file:  uninitialized.c (1.23 KB) -rw-rw-r--
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/* { dg-do run } */
#include "ffitest.h"
typedef struct
{
unsigned char uc;
double d;
unsigned int ui;
} test_structure_1;
static test_structure_1 struct1(test_structure_1 ts)
{
ts.uc++;
ts.d--;
ts.ui++;
return ts;
}
int main (void)
{
ffi_cif cif;
ffi_type *args[MAX_ARGS];
void *values[MAX_ARGS];
ffi_type ts1_type;
ffi_type *ts1_type_elements[4];
memset(&cif, 1, sizeof(cif));
ts1_type.size = 0;
ts1_type.alignment = 0;
ts1_type.type = FFI_TYPE_STRUCT;
ts1_type.elements = ts1_type_elements;
ts1_type_elements[0] = &ffi_type_uchar;
ts1_type_elements[1] = &ffi_type_double;
ts1_type_elements[2] = &ffi_type_uint;
ts1_type_elements[3] = NULL;
test_structure_1 ts1_arg;
/* This is a hack to get a properly aligned result buffer */
test_structure_1 *ts1_result =
(test_structure_1 *) malloc (sizeof(test_structure_1));
args[0] = &ts1_type;
values[0] = &ts1_arg;
/* Initialize the cif */
CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1,
&ts1_type, args) == FFI_OK);
ts1_arg.uc = '\x01';
ts1_arg.d = 3.14159;
ts1_arg.ui = 555;
ffi_call(&cif, FFI_FN(struct1), ts1_result, values);
CHECK(ts1_result->ui == 556);
CHECK(ts1_result->d == 3.14159 - 1);
free (ts1_result);
exit(0);
}
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