mirror of
https://github.com/golang/go
synced 2024-11-22 20:24:47 -07:00
0432f289f7
* remember #defined names, so that C.stdout can refer
to the real name (on OS X) __stdoutp.
* better handling of #defined constant expressions
* allow n, err = C.strtol("asdf", 0, 123) to get errno as os.Error
* write all output files to current directory
* don't require gcc output if there was no input
Fixes #533.
Fixes #709.
Fixes #756.
R=r
CC=dho, golang-dev, iant
https://golang.org/cl/1734047
41 lines
739 B
Go
41 lines
739 B
Go
// Copyright 2009 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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/*
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A trivial example of wrapping a C library in Go.
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For a more complex example and explanation,
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see ../gmp/gmp.go.
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*/
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package stdio
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/*
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <errno.h>
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char* greeting = "hello, world";
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*/
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import "C"
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import "unsafe"
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type File C.FILE
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var Stdout = (*File)(C.stdout)
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var Stderr = (*File)(C.stderr)
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func (f *File) WriteString(s string) {
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p := C.CString(s)
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C.fputs(p, (*C.FILE)(f))
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C.free(unsafe.Pointer(p))
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f.Flush()
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}
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func (f *File) Flush() {
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C.fflush((*C.FILE)(f))
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}
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var Greeting = C.GoString(C.greeting)
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