#include <stdio.h>

int fputc  (
    int   iChar,            /* character to write */
    FILE* stream);          /* file stream to write to */

The function fputc writes a character to a data stream. The parameter iChar is an integer value defining the character to write. The parameter stream is a file pointer defining the data stream.

The function is included in the library RL-FlashFS. The prototype is defined in the file stdio.h.

• the character written - on success.
• EOF - on error.

fgetc, fputs, ungetc

#include <rtl.h>
#include <stdio.h>

void tst_fputc (void)  {
  FILE *fout;
  int ch;

  fout = fopen ("Test.txt","w");
  if (fout != NULL)  {
    while ((ch = getchar ()) != EOF)  {
      fputc (ch, fout);                             /* copy the stdin to a file */
    }
    fclose (fout);
  }
}