| // Copyright 2009 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. |
| |
| /* |
| A trivial example of wrapping a C library in Go. |
| For a more complex example and explanation, |
| see ../gmp/gmp.go. |
| */ |
| |
| package stdio |
| |
| // TODO(rsc): Remove fflushstdout when C.fflush(C.stdout) works in cgo. |
| |
| /* |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| void fflushstdout(void) { fflush(stdout); } |
| */ |
| import "C" |
| import "unsafe" |
| |
| /* |
| type File C.FILE |
| |
| var Stdout = (*File)(C.stdout) |
| var Stderr = (*File)(C.stderr) |
| |
| func (f *File) WriteString(s string) { |
| p := C.CString(s); |
| C.fputs(p, (*C.FILE)(f)); |
| C.free(p); |
| } |
| */ |
| |
| func Puts(s string) { |
| p := C.CString(s); |
| C.puts(p); |
| C.free(unsafe.Pointer(p)); |
| C.fflushstdout(); |
| } |
| |