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https://github.com/golang/go
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918396b3e1
Permit the C preamble to use the _GoString_ type. Permit Go code to pass string values directly to those C types. Add accessors for C code to retrieve sizes and pointers. Fixes #6907 Change-Id: I190c88319ec88a3ef0ddb99f342a843ba69fcaa3 Reviewed-on: https://go-review.googlesource.com/70890 Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by: Austin Clements <austin@google.com>
34 lines
645 B
Go
34 lines
645 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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#include <stdlib.h>
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#include <string.h>
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char* Issue6907CopyString(_GoString_ s) {
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size_t n;
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const char *p;
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char *r;
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n = _GoStringLen(s);
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p = _GoStringPtr(s);
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r = malloc(n + 1);
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memmove(r, p, n);
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r[n] = '\0';
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return r;
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}
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*/
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import "C"
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import "testing"
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func test6907(t *testing.T) {
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want := "yarn"
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if got := C.GoString(C.Issue6907CopyString(want)); got != want {
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t.Errorf("C.GoString(C.Issue6907CopyString(%q)) == %q, want %q", want, got, want)
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}
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}
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