Visual studio compiles as you type. It has to, to work with e.g. 'auto'. Vs has two compilers actually, one that compiles as you type (and tries to guess what y

Visual studio compiles as you type. It has to, to work with e.g. 'auto'. Vs has two compilers actually, one that compiles as you type (and tries to guess what you mean more), and one for the real compile cycle.