// 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:...
mkdir build && cd build cmake -DCMAKE_BUILD_TYPE=Release `path_to_api-cplusplus` -G "MinGW Makefiles" mingw32-make -j `nproc` 编译成功后,会生成三个可执行文件。注意:编译前,需要把libDolphinDBAPI.dll复制到编译目录。 执行例子前,需要把libDolphinDBAPI.dll和libgcc_s_seh-1.dll复制到可执行...
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... ...
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 ...
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...
The amount that you let TeX stretch or shrink the spaces in a line to make it fit the margins can be modified to make TeX more or less lax. Generally, I just look for overfull or underfull lines that are more than a few points and visually inspect them to see if I need to make ...
"But what about loops?" you may wonder. If a variable is used only inside a loop, is it better to define it outside the loop and make an assignment to it on each loop iteration, or is it be better to define the variable inside the loop? That is, which of these general structures...
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; ...
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