Table of Content

fflush >> Stdio.h >> Header File in C Programming

fflush

  1. Header File : Stdio.h
  2. Function force the buffer contents to be written to the file.

Syntax : 

int fflush(FILE *stream);


Return Value : 


    

  1. On Success : Zero
    2. 

  2. On Error : EOF
    3. 



Live Example : 


#include<stdio.h>
int main(void){
     FILE *fp;

     if((fp=fopen("test", "rb"))==NULL) {
        printf("Cannot open file.n");
        exit(1);
     }

      char ch = 'C';
      int i;
      for(i=0; i<5; i++) {
        fwrite(ch, sizeof(ch), 1, fp);
        fflush(fp);
      }
      fclose(fp);
      return 0;
  }