setbuf : setbuf « stdio.h « C Tutorial

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C Tutorial » stdio.h » setbuf

22.32.1.setbuf

Item	Value
Header file	stdio.h
Declaration	void setbuf(FILE stream, char buf);
Function	specifies the buffer that stream will use or,

Set buf to null to turn off buffering.
The buffer must be BUFSIZ characters long.
BUFSIZ is defined in .

#include <stdio.h>



int main ()

{

  char buffer[BUFSIZ];

  FILE *fp1, *fp2;



  fp1=fopen ("test.txt","w");

  fp2=fopen ("test2.txt","a");



  setbuf ( fp1 , buffer );

  fputs ("This is sent to a buffered stream",fp1);

  fflush (fp1);



  setbuf ( fp2 , NULL );

   fputs ("This is sent to an unbuffered stream",fp2);



  fclose (fp1);

  fclose (fp2);



  return 0;



}

22.32.setbuf
	22.32.1.	setbuf

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