golang a 代码
文件路径：/misc/cgo/test/testdata/gcc68255/a.go
/ Copyright 2015 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 it's OK to have C code that does nothing other than
/ initialize a global variable. This used to fail with gccgo.
package gcc68255
/*
#include "c.h"
*/
import "C"
func F() bool {
return C.v != nil
}