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// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Basic test cases for cgo.
package cgotest
/*
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <errno.h>
#define SHIFT(x, y) ((x)<<(y))
#define KILO SHIFT(1, 10)
#define UINT32VAL 0xc008427bU
enum E {
Enum1 = 1,
Enum2 = 2,
};
typedef unsigned char cgo_uuid_t[20];
void uuid_generate(cgo_uuid_t x) {
x[0] = 0;
}
struct S {
int x;
};
extern enum E myConstFunc(struct S* const ctx, int const id, struct S **const filter);
enum E myConstFunc(struct S *const ctx, int const id, struct S **const filter) { return 0; }
// issue 1222
typedef union {
long align;
} xxpthread_mutex_t;
struct ibv_async_event {
union {
int x;
} element;
};
struct ibv_context {
xxpthread_mutex_t mutex;
};
int add(int x, int y) {
return x+y;
};
*/
import "C"
import (
"runtime"
"syscall"
"testing"
"unsafe"
)
const EINVAL = C.EINVAL /* test #define */
var KILO = C.KILO
func uuidgen() {
var uuid C.cgo_uuid_t
C.uuid_generate(&uuid[0])
}
func Strtol(s string, base int) (int, error) {
p := C.CString(s)
n, err := C.strtol(p, nil, C.int(base))
C.free(unsafe.Pointer(p))
return int(n), err
}
func Atol(s string) int {
p := C.CString(s)
n := C.atol(p)
C.free(unsafe.Pointer(p))
return int(n)
}
func testConst(t *testing.T) {
C.myConstFunc(nil, 0, nil)
}
func testEnum(t *testing.T) {
if C.Enum1 != 1 || C.Enum2 != 2 {
t.Error("bad enum", C.Enum1, C.Enum2)
}
}
func testAtol(t *testing.T) {
l := Atol("123")
if l != 123 {
t.Error("Atol 123: ", l)
}
}
func testErrno(t *testing.T) {
p := C.CString("no-such-file")
m := C.CString("r")
f, err := C.fopen(p, m)
C.free(unsafe.Pointer(p))
C.free(unsafe.Pointer(m))
if err == nil {
C.fclose(f)
t.Fatalf("C.fopen: should fail")
}
if err != syscall.ENOENT {
t.Fatalf("C.fopen: unexpected error: %v", err)
}
}
func testMultipleAssign(t *testing.T) {
p := C.CString("234")
n, m := C.strtol(p, nil, 345), C.strtol(p, nil, 10)
if runtime.GOOS == "openbsd" {
// Bug in OpenBSD strtol(3) - base > 36 succeeds.
if (n != 0 && n != 239089) || m != 234 {
t.Fatal("Strtol x2: ", n, m)
}
} else if n != 0 || m != 234 {
t.Fatal("Strtol x2: ", n, m)
}
C.free(unsafe.Pointer(p))
}
var (
cuint = (C.uint)(0)
culong C.ulong
cchar C.char
)
type Context struct {
ctx *C.struct_ibv_context
}
func benchCgoCall(b *testing.B) {
const x = C.int(2)
const y = C.int(3)
for i := 0; i < b.N; i++ {
C.add(x, y)
}
}
// Issue 2470.
func testUnsignedInt(t *testing.T) {
a := (int64)(C.UINT32VAL)
b := (int64)(0xc008427b)
if a != b {
t.Errorf("Incorrect unsigned int - got %x, want %x", a, b)
}
}
// Static (build-time) test that syntax traversal visits all operands of s[i:j:k].
func sliceOperands(array [2000]int) {
_ = array[C.KILO:C.KILO:C.KILO] // no type error
}
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