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With current GCC a macro that refers to another macro can report an error on the macro definition line, with a note on the use. When cgo is trying to decide which line an error refers to, it is looking at the uses. So if we see an error on a line that we don't recognize followed by a note on a line that we do recognize, treat the note as an error. Fixes #20125. Change-Id: I389cd0eb7d56ad2d54bef70e278d9f76c4d36448 Reviewed-on: https://go-review.googlesource.com/44290 Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by: Hiroshi Ioka <hirochachacha@gmail.com> Reviewed-by: Ian Lance Taylor <iant@golang.org>
29 lines
660 B
Go
29 lines
660 B
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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/*
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#define HELLO "hello"
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#define WORLD "world"
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#define HELLO_WORLD HELLO "\000" WORLD
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struct foo { char c; };
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#define SIZE_OF(x) sizeof(x)
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#define SIZE_OF_FOO SIZE_OF(struct foo)
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*/
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import "C"
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import "testing"
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func test18720(t *testing.T) {
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if C.HELLO_WORLD != "hello\000world" {
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t.Fatalf(`expected "hello\000world", but got %q`, C.HELLO_WORLD)
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}
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// Issue 20125.
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if got, want := C.SIZE_OF_FOO, 1; got != want {
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t.Errorf("C.SIZE_OF_FOO == %v, expected %v", got, want)
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}
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}
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