Re: [LI] C Programming problem

[T Subramania Sharma <sharmat@xxxxxxxxxxxxxxxxx>]

hi,

	the problem is because the printf,fprintf,fgets... uses buffered
output. this is basically done to reduce the number of writes. 
	in case of writing to files the buffer size is equal to block
size, and only when the buffer is full the buffer is writeen to file.
	in case of terminals the buffer is line buffered. 
	the buffer is writeen only when a new line is encountered.
	since printf writes to the terminal when the output is not 
redirected, putting \n in the printf will cause the output to be writeen 
to the terminal immediately.
	one more type is unbuffered where there is no buffering.
	the default type of buffering can be changed by the setvbuf 
function.see the man pages for more details. 
	
	this buffering layer which are used by functions in the 
stdio library(stdio.h) is writeen by ritchie.

- sharma


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