1
2// Licensed under the Apache License, Version 2.0 (the "License");
3// you may not use this file except in compliance with the License.
4// You may obtain a copy of the License at
5//
6//     http://www.apache.org/licenses/LICENSE-2.0
7//
8// Unless required by applicable law or agreed to in writing, software
9// distributed under the License is distributed on an "AS IS" BASIS,
10// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11// See the License for the specific language governing permissions and
12// limitations under the License.
13//
14// Copyright 2005-2010 Google, Inc.
15// Author: allauzen@google.com (Cyril Allauzen)
16
17#include <fst/extensions/far/sttable.h>
18
19namespace fst {
20
21bool IsSTTable(const string &filename) {
22  ifstream strm(filename.c_str());
23  if (!strm)
24    return false;
25
26  int32 magic_number = 0;
27  ReadType(strm, &magic_number);
28  return magic_number == kSTTableMagicNumber;
29}
30
31}  // namespace fst
32