c - What i = 1, 23 ;means. -


this question has answer here:

this funny thing happened when make mistake .

i write :

int i; i = 1;

but is

int ;i = 1 ,23;(i guess sometime click middle button of mouse) .

then compiled program gcc , went through without warning or error!

and after notice . try int = 1,23; , , compile give error:

error: expected identifier or ‘(’ before numeric constant

so ,why first time compile suceessful ?

and why give me error second time?

what ", 23" means?

thanks in advance.


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