Nov 24, 2017 · This is called the three-way comparison operator. According to the P0515 paper proposal: There’s a new three-way comparison operator, <=>. The expression a <=> b returns …

} // The remaining functions (trim() et al.) are identical to the new C++11 version std::ptr_fun is needed to disambiguate std::isspace because there is a second definition which supports …

Nov 13, 2009 · I want to use the PI constant and trigonometric functions in some C++ program. I get the trigonometric functions with include &lt;math.h&gt;. However, there doesn't seem to be …

Aug 26, 2008 · I've been writing C and C++ code for almost twenty years, but there's one aspect of these languages that I've never really understood. I've obviously used regular casts i.e. …

32 For variables, specifies that the type of the variable that is being declared will be automatically deduced from its initializer. For functions, specifies that the return type is a trailing return type …

Jan 30, 2009 · Have to recompile foo.cpp every time we change any other file in the program, in case it added a new novel instantiation of MyClass<T> Require that baz.cpp contains …

Nov 20, 2014 · I want to convert a string to an int and I don't mean ASCII codes. For a quick run-down, we are passed in an equation as a string. We are to break it down, format it correctly …

itoa will be faster than the stream equivalent. There are also ways of re-using the string buffer with the itoa method (avoiding heap allocations if you are frequently generating strings. e.g. for …

May 2, 2016 · How can I write colored text to the console with C++? That is, how can I write different text with different colors?

Mar 19, 2015 · Only members/friends of a class can see private inheritance, and only members/friends and derived classes can see protected inheritance. public inheritance IS-A …