FST  openfst-1.8.3
OpenFst Library
stlist.cc
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1 // Copyright 2005-2024 Google LLC
2 //
3 // Licensed under the Apache License, Version 2.0 (the 'License');
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an 'AS IS' BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 //
15 // See www.openfst.org for extensive documentation on this weighted
16 // finite-state transducer library.
17 
19 
20 #include <cstdint>
21 #include <ios>
22 #include <string>
23 
24 #include <fstream>
25 #include <fst/util.h>
26 #include <string_view>
27 
28 namespace fst {
29 
30 bool IsSTList(std::string_view source) {
31  std::ifstream strm(std::string(source),
32  std::ios_base::in | std::ios_base::binary);
33  if (!strm) return false;
34  int32_t magic_number = 0;
35  ReadType(strm, &magic_number);
36  return magic_number == kSTListMagicNumber;
37 }
38 
39 } // namespace fst
bool IsSTList(std::string_view source)
Definition: stlist.cc:30
std::istream & ReadType(std::istream &strm, T *t)
Definition: util.h:80
constexpr int32_t kSTListMagicNumber
Definition: stlist.h:47