How To Convert String To Int C++?

`int x = std::stoi(str);`

`int x = std::stoi(str, nullptr, 10);`

`int x = std::atoi(str.c_str());`

`int x = std::strtol(str.c_str(), nullptr, 10);`

`std::istringstream iss(str); int x; iss >> x;`

`int x = std::from_chars(str.data(), str.data() + str.size(), value).ec == std::errc{} ? value : 0;`

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