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Current File : //usr/local/go/src/cmd/compile/internal/base/mapfile_read.go

// Copyright 2018 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.

//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !(solaris && go1.20)

package base

import (
	"io"
	"os"
)

func MapFile(f *os.File, offset, length int64) (string, error) {
	buf := make([]byte, length)
	_, err := io.ReadFull(io.NewSectionReader(f, offset, length), buf)
	if err != nil {
		return "", err
	}
	return string(buf), nil
}