Depending on where you’re at in your journey with learning programming languages (and specifically, C++), LearnCpp.com might be the only resource you’re using to learn C++ or to look something up. LearnCpp.com is designed to explain concepts in a beginner-friendly fashion, but it simply can’t cover every aspect of the …
In the previous lesson (), we introduced this example: #include <algorithm> #include <array> #include <iostream> #include <string_view> int main() { std::array<std::string_view, 4> arr{ “apple”, “banana”, “walnut”, “lemon” }; auto found{ std::find_if(arr.begin(), arr.end(), [](std::string_view str) { return str.find(“nut”) != std::string_view::npos; }) }; if (found == arr.end()) { std::cout << “No nuts\n”; …
Consider this snippet of code that we introduced in lesson : #include <algorithm> #include <array> #include <iostream> #include <string_view> // Our function will return true if the element matches bool containsNut(std::string_view str) { // std::string_view::find returns std::string_view::npos if it doesn’t find // the substring. Otherwise it returns the index where …
New programmers typically spend a lot of time writing custom loops to perform relatively simple tasks, such as sorting or counting or searching arrays. These loops can be problematic, both in terms of how easy it is to make an error, and in terms of overall maintainability, as loops can …
Consider the following program: #include <iostream> int main() { int x { 5 }; // x makes a copy of its initializer std::cout << x << ‘\n’; return 0; } When the definition for x is executed, the initialization value 5 is copied into the memory allocated for variable int …
