Hi to all of you, 1.I just came across that ANSI(ISO) aint allow nesting of function.. i want to know what makes gnu c ito implemet this functionality(why such need arise). 2.If a function say(a()) is define with in another function say(b()) then the lifetime of a() would be whole prorgramme? 3.Will the storage for a() ll be created in a stack allocated to function b().?