So putting back that prototype allows me to compile this, because I'm saying proactively to the compiler hey, you're going to see a function called increment.

把那个原型放回原处使我能够编译它，因为我提前向编译器打了招呼，将看到一个叫做increment的函数。

哈佛公开课 - 计算机科学课程节选