gcc/libffi/testsuite/libffi.call/strlen_win32.c

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/* Area: ffi_call
Purpose: Check stdcall strlen call on X86_WIN32 systems.
Limitations: none.
PR: none.
Originator: From the original ffitest.c */
/* { dg-do run { target i?86-*-cygwin* i?86-*-mingw* } } */
#include "ffitest.h"
static size_t __attribute__((stdcall)) my_stdcall_strlen(char *s)
{
return (strlen(s));
}
int main (void)
{
ffi_cif cif;
ffi_type *args[MAX_ARGS];
void *values[MAX_ARGS];
ffi_arg rint;
char *s;
args[0] = &ffi_type_pointer;
values[0] = (void*) &s;
/* Initialize the cif */
CHECK(ffi_prep_cif(&cif, FFI_STDCALL, 1,
&ffi_type_sint, args) == FFI_OK);
s = "a";
ffi_call(&cif, FFI_FN(my_stdcall_strlen), &rint, values);
CHECK(rint == 1);
s = "1234567";
ffi_call(&cif, FFI_FN(my_stdcall_strlen), &rint, values);
CHECK(rint == 7);
s = "1234567890123456789012345";
ffi_call(&cif, FFI_FN(my_stdcall_strlen), &rint, values);
CHECK(rint == 25);
printf("stdcall strlen tests passed\n");
exit(0);
}