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IAIStringUtils.hGo to the documentation of this file.00001 /************************************************************************* 00002 * 00003 * ADOBE CONFIDENTIAL 00004 * 00005 * Copyright 2018 Adobe 00006 * 00007 * All Rights Reserved. 00008 * 00009 * NOTICE: Adobe permits you to use, modify, and distribute this file in 00010 * accordance with the terms of the Adobe license agreement accompanying 00011 * it. If you have received this file from a source other than Adobe, 00012 * then your use, modification, or distribution of it requires the prior 00013 * written permission of Adobe. 00014 * 00015 **************************************************************************/ 00016 00017 #pragma once 00018 00019 #include <sstream> 00020 #include <string> 00021 00022 namespace ai 00023 { 00024 namespace detail 00025 { 00026 // Base case: No args to stream 00027 void StreamArgs(std::ostringstream& ss) 00028 { 00029 } 00030 00031 // Recursively stream each arg in the parameter pack 00032 template<typename T, typename... Ts> 00033 void StreamArgs(std::ostringstream& ss, const T& t, const Ts&... ts) 00034 { 00035 ss << t; 00036 StreamArgs(ss, ts...); 00037 } 00038 00039 } // namespace detail 00040 00041 /* 00042 * Stream arbitrary number of arguments to std::string 00043 */ 00044 template<typename... Args> 00045 inline std::string StreamArgs(const Args&... args) 00046 { 00047 std::ostringstream ss; 00048 // TODO: In C++17, fold expression can be used to expand the pack 00049 // (ss << ... << args); 00050 detail::StreamArgs(ss, args...); 00051 return ss.str(); 00052 } 00053 00054 /* 00055 * Utility to create std::string using ostringstream. 00056 */ 00057 template<typename T> 00058 inline std::string to_string(const T& value) 00059 { 00060 return StreamArgs(value); 00061 } 00062 00063 } // namespace ai |
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