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