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go/misc/cgo/test/issue5548.go
Russ Cox fcbe51c9e3 misc/cgo/test: make issue5548 test pickier
If there is doubt about passing arguments correctly
(as there is in this test), there should be doubt about
getting the results back intact too. Using 0 and 1
(especially 0 for success) makes it easy to get a PASS
accidentally when the return value is not actually
being propagated. Use less common values.

LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews, r
https://golang.org/cl/141110043
2014-09-05 14:59:09 -04:00

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549 B
Go

// 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.
package cgotest
import "testing"
/*
extern int issue5548_in_c(void);
*/
import "C"
//export issue5548FromC
func issue5548FromC(s string, i int) int {
if len(s) == 4 && s == "test" && i == 42 {
return 12345
}
println("got", len(s), i)
return 9876
}
func test5548(t *testing.T) {
if x := C.issue5548_in_c(); x != 12345 {
t.Errorf("issue5548_in_c = %d, want %d", x, 12345)
}
}