libgo/misc/cgo/test/api.go

   1 // Copyright 2013 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 // API Compatibility Checks for cgo
   6
   7 package cgotest
   8
   9 // #include <stdlib.h>
  10 //
  11 // // Test for issue 17723.
  12 // typedef char *cstring_pointer;
  13 // static void cstring_pointer_fun(cstring_pointer dummy) { }
  14 //
  15 // const char *api_hello = "hello!";
  16 import "C"
  17 import "unsafe"
  18
  19 func testAPI() {
  20         var cs *C.char
  21         cs = C.CString("hello")
  22         defer C.free(unsafe.Pointer(cs))
  23         var s string
  24         s = C.GoString((*C.char)(C.api_hello))
  25         s = C.GoStringN((*C.char)(C.api_hello), C.int(6))
  26         var b []byte
  27         b = C.GoBytes(unsafe.Pointer(C.api_hello), C.int(6))
  28         _, _ = s, b
  29         C.cstring_pointer_fun(nil)
  30 }