A small difference between C and C + + in formal parameters

Let's take a look at the following code:

int fun (b) int a;int b; {return 10;} void Main (int argc, char * * argv) {fun (ten); return;}

Guess what it does in vs small energy by compiling?

Haha, not wordy, directly said the result, if this code in a. c file can be compiled, in a. cpp file is not compiled.

Very strange, think this should be a little difference between C and C + +, recently in the NC source, see this formal parameter declaration way, feel good magic, there is the number of its ship parameter is more magical, as long as the actual parameter is less than the number of parameters is good.

I put the NC source code, there is a need to download:

http://download.csdn.net/detail/liujiayu2/8981509

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

A small difference between C and C + + in formal parameters