go malloc 源码
golang malloc 代码
文件路径：/misc/cgo/errors/testdata/malloc.go
// Copyright 2016 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.
// Test that C.malloc does not return nil.
package main
// #include <stdlib.h>
import "C"
import (
"fmt"
"runtime"
)
func main() {
var size C.size_t
size--
// The Dragonfly libc succeeds when asked to allocate
// 0xffffffffffffffff bytes, so pass a different value that
// causes it to fail.
if runtime.GOOS == "dragonfly" {
size = C.size_t(0x7fffffff << (32 * (^uintptr(0) >> 63)))
}
p := C.malloc(size)
if p == nil {
fmt.Println("malloc: C.malloc returned nil")
// Just exit normally--the test script expects this
// program to crash, so exiting normally indicates failure.
}
}
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