The function int fputc(int character, FILE *stream); writes a character to the given stream and increment the internal position indicator by one.
Function prototype of fputc
int fputc(int character, FILE *stream);
- character : This is the character to be written.
- stream : A pointer to a FILE object which identifies a stream where we want to write a character.
Return value of fputc
This function returns the character written in stream, on success. If an error occurs, EOF is returned and the error indicator is set.
C program to show the use of fputc function
The following program shows the use of fputc and fgetc function to write and read characters in a stream respectively. The following program writes a string(one character at time using fputc) in a new file and again prints it's content on screen using fgetc.
#include <stdio.h>
#include <string.h>
int main (){
FILE *file;
char *string = "fputc C Standard
Library function";
int c, counter, length = strlen(string);
file = fopen("textFile.txt", "w+");
for(counter = 0; counter<length; counter++){
fputc(string[counter], file);
}
/* Reset file pointer location to
first character */
rewind(file);
/* Read characters from file */
while(!feof(file)){
c = fgetc(file);
printf("%c", c);
}
fclose(file);
return(0);
}
Output
fputc C Standard Library function