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 19 namespace fst { 20 IsSTTable(const string & filename)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