| // 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. |
| |
| package main |
| |
| /* |
| extern int *GoFn(int *); |
| |
| // Yes, you can have definitions if you use //export, as long as they are weak. |
| int f(void) __attribute__ ((weak)); |
| |
| int f() { |
| int i; |
| int *p = GoFn(&i); |
| if (*p != 12345) |
| return 0; |
| return 1; |
| } |
| */ |
| import "C" |
| |
| //export GoFn |
| func GoFn(p *C.int) *C.int { |
| *p = C.int(12345) |
| return p |
| } |
| |
| func main() { |
| if r := C.f(); r != 1 { |
| panic(r) |
| } |
| } |
