What is the <=> ("spaceship", three-way comparison) operator in …
Nov 24, 2017 · The <=> token is introduced. The character sequence <=> tokenizes to <= >, in old source code. For example, X<&Y::operator<=> needs to add a space to retain its meaning. …
C++ code file extension? What is the difference between .cc and …
95 .cpp is the recommended extension for C++ as far as I know. Some people even recommend using .hpp for C++ headers, just to differentiate from C. Although the compiler doesn't care …
How to generate a random number in C++? - Stack Overflow
Nov 19, 2012 · Distribution issues aside, keep in mind that with random numbers comes the possibility of getting the same result several times in a row. If you were guaranteed not to get …
Proper way to initialize C++ structs - Stack Overflow
Jan 21, 2017 · Our code involves a POD (Plain Old Datastructure) struct (it is a basic c++ struct that has other structs and POD variables in it that needs to get initialized in the beginning.) …
c++ - Easily measure elapsed time - Stack Overflow
May 11, 2010 · I am trying to use time() to measure various points of my program. What I don't understand is why the values in the before and after are the same? I understand this is not the …
How to replace all occurrences of a character in string?
May 24, 2010 · What is the effective way to replace all occurrences of a character with another character in std::string?
How to use the PI constant in C++ - Stack Overflow
Nov 13, 2009 · I want to use the PI constant and trigonometric functions in some C++ program. I get the trigonometric functions with include <math.h>. However, there doesn't seem to be …
What are the actual min/max values for float and double (C++)
Feb 6, 2018 · The std::numerics_limits class in the <limits> header provides information about the characteristics of numeric types. For a floating-point type T, here are the greatest and least …
Run C++ in command prompt - Windows - Stack Overflow
It depends on what compiler you're using. For example, if you are using Visual C++ .NET 2010 Express, run Visual C++ 2010 Express Command Prompt from the start menu, and you can …
c++ - What does the explicit keyword mean? - Stack Overflow
Sep 23, 2008 · I just want to point out to anyone new coming along that ever since C++11, explicit can be applied to more than just constructors. It's now valid when applied to conversion …