Category : unordered-map

I have an unordered_map pointer in a structure since I need it in shared memory to access and modify as the program runs. struct Umaps {std::unordered_map<int, int> *node_index;} ; I then initialize the unordered_map, node_index, in another function. Umapsptr->node_index = new std::unordered_map<int, int>(); Where Umapsptr is the pointer to the Umaps structure in my function. ..

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This example fails to compile unless I uncomment the default constructor declaration: #include<unordered_map> #include <iostream> struct foo{ int data; /*foo(){ data = 0; std::cout << "DEFAULTn"; }*/ foo(int d){ data = d; std::cout << "PARAMn"; } }; struct bar{ std::unordered_map<int, foo> map; foo getElem(int i){ return map[i]; } }; int main() { bar b; foo ..

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in c++, unordered_map and map are good tools to search key from a map. i can build a map, which a key is date and value is double (or my self-defined struct). but i want a range map, which means the key is a range, for example: #inlcude <map> m[20190101-20201201] = 3. cout << m[20200101]; ..

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So I am trying to compile the following code using emscripten: // this is test.cpp #include<iostream> #include<string.h> #include<fstream> #include<tr1/unordered_map> //needed to use unordered maps in C++. not needed C++11 onwards #include "C:Users<myusername>DocumentsPROGRAMMINGexamplefolderpugixml-1.11srcpugixml.hpp" #include <ctime> #include <chrono> int main() { std::cout<<"DIS IS DA TEST"; return 0; } My actual code is much larger, but I’ve shortened ..

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