82 lines
1.9 KiB
C++
82 lines
1.9 KiB
C++
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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#pragma once
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#include <sstream>
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#include <string>
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#include <type_traits>
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#include <typeindex>
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#include <vector>
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namespace paddle {
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namespace string {
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inline std::ostream& operator<<(std::ostream& s, const std::type_index& t) {
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s << t.name();
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return s;
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}
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template <typename T,
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typename std::enable_if<!std::is_enum<T>::value, int>::type = 0>
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inline std::string to_string(T v) {
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std::ostringstream sout;
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sout << v;
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return sout.str();
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}
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template <typename T,
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typename std::enable_if<std::is_enum<T>::value, int>::type = 0>
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inline std::string to_string(T v) {
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return std::to_string(static_cast<int>(v));
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}
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template <>
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inline std::string to_string(std::type_index t) {
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return t.name();
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}
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// Faster std::string/const char* type
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template <>
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inline std::string to_string(std::string v) {
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return v;
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}
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template <>
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inline std::string to_string(const char* v) {
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return std::string(v);
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}
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inline std::ostream& operator<<(std::ostream& os,
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const std::vector<std::vector<size_t>>& lod) {
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os << "{";
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for (auto& v : lod) {
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os << "{";
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bool is_first = true;
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for (auto& i : v) {
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if (is_first) {
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os << i;
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is_first = false;
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} else {
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os << ", " << i;
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}
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}
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os << "}";
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}
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os << "}";
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return os;
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}
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} // namespace string
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} // namespace paddle
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