stdstring

Possible Duplicate: How to parse a string to an int in C++? How do you convert a C++ string to an int? Assume you are expecting the string to have actual numbers in it ("1", "345", "38944", for example). Also, let's assume you don't have boost, and you really want to do it the C++ way, not the crufty old C way. Randy Sugianto 'Yuku' #include <sstream> // st is input string int result; stringstream(st) >> result; Martin York Use the C++ streams. std::string plop("123"); std::stringstream str(plop); int x; str >> x; /* Lets not forget to error checking */ if (!str) { // The conversion failed. //

If I want to construct a std::string with a line like: std::string my_string("a\0b"); Where i want to have three characters in the resulting string (a, null, b), I only get one. What is the proper syntax? Since C++14 we have been able to create literal std::string #include <iostream> #include <string> int main() { using namespace std::string_literals; std::string s = "pl-\0-op"s; // <- Notice the "s" at the end // This is a std::string literal not // a C-String literal. std::cout << s << "\n"; } Before C++14 The problem is the std::string constructor that takes a const char* assumes the input