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/stlist.h>
18 
19 namespace fst {
20 
IsSTList(const string & filename)21 bool IsSTList(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 == kSTListMagicNumber;
29 }
30 
31 }  // namespace fst
32