Brainfuck ignores all characters except the eight commands +-<>,. so no special syntax for comments is needed (as long as the comments do not contain the command characters).
Brainfuck ignoriše sve znakove, osim osam komandi +, -, <, >, , ., , tako da nije potrebna posebna sintaksa za komentare, sve dok sami komentari ne sadrže komandne znakove.