C++ "function" keyword
Hi! I discovered that my IDE (CodeBlocks) marked the word "function" in green when I typed it. Discovered that by mistake because I've been programming in PHP for a while.
But which header file is the keyword "function" in? And how do I use it? I'm just curious. I've searched around on Google for it. But it just shows me how to define a function and things that I already know.
Thanks for answers!
std::function is the declared in the standard header <functional>, as of C++11. It's a general-purpose function wrapper.
What grumpy says is true, but just to be clear though, "function" is not actually a keyword in C++, as suggested in your post title.
If it were, then you couldn't e.g. declare a variable called "function".
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So it is declared in the header <functional> and isn't a C++ keyword. But what is it used for?
A code example would be great!
Did you even try a search? Found this searching for "std::function" -> std::function - cppreference.com
function is not a keyword in C++. It is a templated class type that is defined in the standard library.
As I said in a previous post, it is a function wrapper. So it is (um) used to wrap callable objects (objects that behave like functions).
