golang a 代码
文件路径：/misc/cgo/test/testdata/issue27340/a.go
/ Copyright 2018 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.
/ Failed to resolve typedefs consistently.
/ No runtime test; just make sure it compiles.
/ In separate directory to isolate #pragma GCC diagnostic.
package issue27340
/ We use the #pragma to avoid a compiler warning about incompatible
/ pointer types, because we generate code passing a struct ptr rather
/ than using the typedef. This warning is expected and does not break
/ a normal build.
/ We can only disable -Wincompatible-pointer-types starting with GCC 5.
/ #if __GNU_MAJOR__ >= 5
/
/ #pragma GCC diagnostic ignored "-Wincompatible-pointer-types"
/
/ typedef struct {
/ int a;
/ } issue27340Struct, *issue27340Ptr;
/
/ static void issue27340CFunc(issue27340Ptr p) {}
/
/ #else /* _GNU_MAJOR_ < 5 */
/
/ typedef struct {
/ int a;
/ } issue27340Struct;
/
/ static issue27340Struct* issue27340Ptr(issue27340Struct* p) { return p; }
/
/ static void issue27340CFunc(issue27340Struct *p) {}
/ #endif /* _GNU_MAJOR_ < 5 */
import "C"
func Issue27340GoFunc() {
var s C.issue27340Struct
C.issue27340CFunc(C.issue27340Ptr(&s))
}