C fputs() function

Last update on September 20 2022 12:34:19 (UTC/GMT +8 hours)

C library function - fputs()

The fputs() function is used to copy string to the output stream at the current position. At the end of the string, the null character (/0) is not copied.

Syntax:

int fputs(const char *string, FILE *stream);

Parameters:

Name	Description	Required /Optional
str	This is the variable in which the string will be stored.	Required
stream	Identifies an address for a file descriptor, which is an area of memory associated with an input or output stream.	Required

Return value

Upon successful completion, fputs() shall return a non-negative number.
Otherwise, it shall return EOF, set an error indicator for the stream, and set errno to indicate the error.

Example: fputs() function

#include <stdio.h>
int main () {
   FILE *fp;
   char string[100];
   fp = fopen("test.txt", "w+");
   fputs("C programming.", fp);
   fputs("C Exercises.", fp);
   fclose(fp);
   
   fp=fopen("test.txt","r");
   fgets(string,100,fp);
   printf("The string is:\n%s",string);
   fclose(fp); 
   return 0;
}

Output:

The string is:
C programming.C Exercises.

C Programming Code Editor:

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