gcc/libgo/syscalls/stringbyte.go

38 lines
871 B
Go

// stringbyte.go -- string to bytes functions.
// Copyright 2010 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 syscall
import "unsafe"
// StringByteSlice returns a NUL-terminated slice of bytes
// containing the text of s.
func StringByteSlice(s string) []byte {
a := make([]byte, len(s)+1);
for i := 0; i < len(s); i++ {
a[i] = s[i];
}
return a;
}
// StringBytePtr returns a pointer to a NUL-terminated array of bytes
// containing the text of s.
func StringBytePtr(s string) *byte {
p := StringByteSlice(s);
return &p[0];
}
// BytePtrToString takes a NUL-terminated array of bytes and convert
// it to a Go string.
func BytePtrToString(p *byte) string {
a := (*[10000]byte)(unsafe.Pointer(p))
i := 0
for a[i] != 0 {
i++
}
return string(a[:i])
}