Next error in Emacs

Useful article: Compiling and Debugging C in Emacs

if you are coming up against real syntax errors in the code, such as missing semicolons and whatnot, compile-mode lets you jump to them quickly. Rather than using goto-line and typing the line number of a suspected error, just type C-x ` in the code window. (that's a back-tick, or back-quote, which is either in the upper left of your keyboard, or to the right of the single quote.) C-x ` jumps to the next compiler error, so you can keep typing C-x ` until you get to an error you know how to fix.