Use C putc function to output character to a stream

Syntax

C putc function has the following syntax.

Header

C putc function is from Header file stdio.h.

Description

C putc function writes a character to the output stream.

C putc function returns the character written on success and EOF on error.

For binary mode, you can use ferror() to determine whether an error has occurred.

Example

Write character to a stream by using C putc function

#include <stdio.h>
//from   w  ww. j av a2  s . co  m
int main(void){

  FILE *fp;

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

  char *str = "www.java2s.com";

  for(; *str; str++){
      putc(*str, fp);
  }
}