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57fa1c7c94
Fixes #21809 Change-Id: Ic43077c6bea3c7cdc9611e74abf07b6deab70433 Reviewed-on: https://go-review.googlesource.com/62670 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
46 lines
1.4 KiB
Go
46 lines
1.4 KiB
Go
// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package cgotest
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// Issue 21809. Compile C `typedef` to go type aliases.
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// typedef long MySigned_t;
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// /* tests alias-to-alias */
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// typedef MySigned_t MySigned2_t;
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//
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// long takes_long(long x) { return x * x; }
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// MySigned_t takes_typedef(MySigned_t x) { return x * x; }
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import "C"
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import "testing"
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func test21809(t *testing.T) {
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longVar := C.long(3)
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typedefVar := C.MySigned_t(4)
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typedefTypedefVar := C.MySigned2_t(5)
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// all three should be considered identical to `long`
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if ret := C.takes_long(longVar); ret != 9 {
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t.Errorf("got %v but expected %v", ret, 9)
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}
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if ret := C.takes_long(typedefVar); ret != 16 {
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t.Errorf("got %v but expected %v", ret, 16)
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}
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if ret := C.takes_long(typedefTypedefVar); ret != 25 {
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t.Errorf("got %v but expected %v", ret, 25)
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}
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// They should also be identical to the typedef'd type
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if ret := C.takes_typedef(longVar); ret != 9 {
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t.Errorf("got %v but expected %v", ret, 9)
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}
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if ret := C.takes_typedef(typedefVar); ret != 16 {
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t.Errorf("got %v but expected %v", ret, 16)
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}
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if ret := C.takes_typedef(typedefTypedefVar); ret != 25 {
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t.Errorf("got %v but expected %v", ret, 25)
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}
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}
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