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41 lines
1.2 KiB
41 lines
1.2 KiB
// Copyright (c) 2020 Mobvoi Inc (Binbin Zhang)
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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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#ifndef UTILS_UTILS_H_
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#define UTILS_UTILS_H_
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#include <cstdint>
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#include <limits>
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#include <vector>
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namespace wenet {
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#define WENET_DISALLOW_COPY_AND_ASSIGN(Type) \
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Type(const Type&) = delete; \
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Type& operator=(const Type&) = delete;
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const float kFloatMax = std::numeric_limits<float>::max();
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// kSpaceSymbol in UTF-8 is: ▁
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const char kSpaceSymbol[] = "\xe2\x96\x81";
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// Return the sum of two probabilities in log scale
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float LogAdd(float x, float y);
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template <typename T>
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void TopK(const std::vector<T>& data, int32_t k, std::vector<T>* values,
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std::vector<int>* indices);
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} // namespace wenet
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#endif // UTILS_UTILS_H_
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