// Compile: g++ -std=c++11 pair.cpp #include <utility> #include <string> #include <iostream> #include <tuple> int main () { std::pair <std::string, int> p1; // default constructor p1 = std::make_pair(std::string("alpha"), 1); // using make_pair (move) std::pair <std:...
make_pair Construct pair object (function template) forward Forward argument (function template) move Move as rvalue (function template) move_if_noexcept Move if noexcept (function template) declval Declaration value (function template)Types pair Pair of values (class template) piecewise_construct_t ...
vector<ConstantSP> args; TableSP table = createDemoTable(); VectorSP range = Util::createPair(DT_INDEX); range->setIndex(0, 0); range->setIndex(1, 10); cout<<range->getString()<<endl; args.push_back(table->get(range)); conn.run("tableInsert{tglobal}", args); ...
make: /usr/bin//-g++: No such file or directory[UNIX/Linux Programming] Hi I got a vs code environment on my host (ubuntu 22.04), and i want to cross-compile an application for imx8mp board. It worked pretty good intil i insta... ...
pair<int, string> newone; newone = make_pair(a, m); cout << newone.first << newone.second << endl; //output: 8 James 5,通过tie获取pair元素值 在某些清况函数会以pair对象作为返回值时,可以直接通过std::tie进行接收。比如: std::pair<std::string, int> getPreson() { ...
int getCurrentNum(char c[]) { int num = 0; map::iterator it = baseMap.find(c); if (it == baseMap.end()) { currNum++; num = currNum; baseMap.insert(make_pair(c, num)); } else { num = it->second; } return num; } 1、如果要使用数组,需要将字母转换为数字,当然最后输出的...
cmake_minimum_required(VERSION 3.10) project(TestSharedLib) # C++11 编译 set(CMAKE_CXX_STANDARD 11) # 头文件路径 set(INC_DIR /home/xx/code/clion/MySharedLib) # 库文件路径 set(LIB_DIR /home/xx/code/clion/MySharedLib/cmake-build-debug) include_directories(${INC_DIR}) link_directories...
为生成pair, c++ 提供了make_pair的快捷操作。 而tuple的定义: template<class _This, class... _Rest> class tuple<_This, _Rest...> : private tuple<_Rest...> { // recursive tuple definition public: typedef _This _This_type; typedef tuple<_This, _Rest...> _Myt; ...
(the one containing the loop) than Approach B, something that’s contrary to program comprehensibility and maintainability. As a result, unless you know that (1) assignment is less expensive than a constructor-destructor pair and (2) you’re dealing with a performance-sensitive part of your ...
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