C fputs() function

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.


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


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);
   printf("The string is:\n%s",string);
   return 0;


The string is:
C programming.C Exercises.

C Programming Code Editor:

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