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82 lines
2.2 KiB
82 lines
2.2 KiB
// Copyright 2005-2024 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the 'License');
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an 'AS IS' BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// See www.openfst.org for extensive documentation on this weighted
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// finite-state transducer library.
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//
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// Google-style logging declarations and inline definitions.
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#ifndef FST_LOG_H_
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#define FST_LOG_H_
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#include <cassert>
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#include <cstdlib>
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#include <iostream>
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#include <ostream>
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#include <string_view>
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#include <fst/flags.h>
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class LogMessage;
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class LogMessage;
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DECLARE_int32(v);
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class LogMessage {
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public:
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explicit LogMessage(std::string_view type) : fatal_(type == "FATAL") {
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std::cerr << type << ": ";
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}
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~LogMessage() {
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std::cerr << std::endl;
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if (fatal_) exit(1);
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}
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std::ostream &stream() { return std::cerr; }
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private:
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bool fatal_;
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};
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#define LOG(type) LogMessage(#type).stream()
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#define VLOG(level) if ((level) <= FST_FLAGS_v) LOG(INFO)
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// Checks.
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inline void FstCheck(bool x, std::string_view expr, std::string_view file,
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int line) {
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if (!x) {
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LOG(FATAL) << "Check failed: \"" << expr << "\" file: " << file
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<< " line: " << line;
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}
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}
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#define CHECK(x) FstCheck(static_cast<bool>(x), #x, __FILE__, __LINE__)
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#define CHECK_EQ(x, y) CHECK((x) == (y))
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#define CHECK_LT(x, y) CHECK((x) < (y))
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#define CHECK_GT(x, y) CHECK((x) > (y))
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#define CHECK_LE(x, y) CHECK((x) <= (y))
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#define CHECK_GE(x, y) CHECK((x) >= (y))
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#define CHECK_NE(x, y) CHECK((x) != (y))
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// Debug checks.
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#define DCHECK(x) assert(x)
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#define DCHECK_EQ(x, y) DCHECK((x) == (y))
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#define DCHECK_LT(x, y) DCHECK((x) < (y))
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#define DCHECK_GT(x, y) DCHECK((x) > (y))
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#define DCHECK_LE(x, y) DCHECK((x) <= (y))
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#define DCHECK_GE(x, y) DCHECK((x) >= (y))
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#define DCHECK_NE(x, y) DCHECK((x) != (y))
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#endif // FST_LOG_H_
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