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// Copyright 2013 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.
// This file contains test cases for cgo with function pointer variables.
package cgotest
/*
typedef int (*intFunc) ();
int
bridge_int_func(intFunc f)
{
return f();
}
int fortytwo()
{
return 42;
}
*/
import "C"
import "testing"
func callBridge(f C.intFunc) int {
return int(C.bridge_int_func(f))
}
func callCBridge(f C.intFunc) C.int {
return C.bridge_int_func(f)
}
func testFpVar(t *testing.T) {
const expected = 42
f := C.intFunc(C.fortytwo)
res1 := C.bridge_int_func(f)
if r1 := int(res1); r1 != expected {
t.Errorf("got %d, want %d", r1, expected)
}
res2 := callCBridge(f)
if r2 := int(res2); r2 != expected {
t.Errorf("got %d, want %d", r2, expected)
}
r3 := callBridge(f)
if r3 != expected {
t.Errorf("got %d, want %d", r3, expected)
}
}
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