According to CodeGuru: CString to std::string: BUT: std::string cannot always construct from a LPCTSTR. i.e. the code will fail for UNICODE builds. As std::string can construct only from LPSTR / LPCSTR, a programmer who uses VC++ 7.x or better can utilize conversion classes such as CT2CA as an intermediary. std::string to CString: (From Visual Studio’s … Read more
I’d like it to print Player 4. The above is obviously wrong but it shows what I’m trying to do here. Is there an easy way to do this or do I have to start adding new includes?
Well, you could erase() the first character too (note that erase() modifies the string): But in this case, a simpler way is to take a substring: Be careful to validate that the string actually has at least two characters in it first…
std::string doesn’t contain such function but you could use stand-alone replace function from algorithm header.
Modern C++ makes this super simple. C++20 C++20 introduces std::format, which allows you to do exactly that. It uses replacement fields similar to those in python: Code from cppreference.com, CC BY-SA and GFDL Check out the compiler support page to see if it’s available in your standard library implementation. As of 2021-11-28, full support is only available in Visual Studio 2019 16.10, which … Read more
EDIT Since c++17, some parts of the standard library were removed. Fortunately, starting with c++11, we have lambdas which are a superior solution. Thanks to https://stackoverflow.com/a/44973498/524503 for bringing up the modern solution. Original answer: I tend to use one of these 3 for my trimming needs: They are fairly self-explanatory and work very well. EDIT: BTW, I have std::ptr_fun in … Read more
In C++11 you can use std::to_string: If you’re working with prior to C++11, you could use C++ streams: Taken from http://notfaq.wordpress.com/2006/08/30/c-convert-int-to-string/
I thought this would be really simple, but it’s presenting some difficulties. If I have How do I combine them to get a single string “John21”?
std::string has a constructor for this: Note that this construct deep copies the character list at s and s should not be nullptr, or else behavior is undefined.