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https://github.com/golang/go
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0b5bcf53ee
It's because runtime links to ntdll, and ntdll exports a couple incompatible libc functions. We must link to msvcrt first and then try ntdll. Fixes #12030. Change-Id: I0105417bada108da55f5ae4482c2423ac7a92957 Reviewed-on: https://go-review.googlesource.com/14472 Reviewed-by: Alex Brainman <alex.brainman@gmail.com> Run-TryBot: Minux Ma <minux@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
36 lines
782 B
Go
36 lines
782 B
Go
// Copyright 2015 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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// Issue 12030. sprintf is defined in both ntdll and msvcrt,
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// Normally we want the one in the msvcrt.
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package cgotest
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/*
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#include <stdio.h>
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#include <stdlib.h>
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void issue12030conv(char *buf, double x) {
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sprintf(buf, "d=%g", x);
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}
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*/
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import "C"
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import (
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"fmt"
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"testing"
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"unsafe"
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)
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func test12030(t *testing.T) {
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buf := (*C.char)(C.malloc(256))
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defer C.free(unsafe.Pointer(buf))
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for _, f := range []float64{1.0, 2.0, 3.14} {
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C.issue12030conv(buf, C.double(f))
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got := C.GoString(buf)
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if want := fmt.Sprintf("d=%g", f); got != want {
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t.Fatalf("C.sprintf failed for %g: %q != %q", f, got, want)
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}
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}
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}
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