fputs

From cppreference.com
< c ‎ | io
Defined in header <stdio.h>
int fputs ( const char * str, FILE * stream ) ;
(until C99)
int fputs ( const char * restrict str, FILE * restrict stream ) ;
(since C99)

Writes every character from the null-terminated string str to the output stream stream , as if by repeatedly executing fputc .

The terminating null character from str is not written.

Parameters

str - null-terminated character string to be written
stream - output stream

Return value

On success, returns a non-negative value.

On failure, returns EOF and sets the error indicator (see ferror() ) on stream .

Notes

The related function puts appends a newline character to the output, while fputs writes the string unmodified.

Different implementations return different non-negative numbers: some return the last character written, some return the number of characters written (or INT_MAX if the string was longer than that), some simply return a non-negative constant such as zero.

Example

#include <stdio.h>
 
int main(void)
{
    int rc = fputs("Hello World", stdout);
 
    if (rc == EOF)
       perror("fputs()"); // POSIX requires that errno is set
}

Output:

Hello World

References

  • C23 standard (ISO/IEC 9899:2024):
  • 7.21.7.4 The fputs function (p: TBD)
  • C17 standard (ISO/IEC 9899:2018):
  • 7.21.7.4 The fputs function (p: TBD)
  • C11 standard (ISO/IEC 9899:2011):
  • 7.21.7.4 The fputs function (p: 331-332)
  • C99 standard (ISO/IEC 9899:1999):
  • 7.19.7.4 The fputs function (p: 297)
  • C89/C90 standard (ISO/IEC 9899:1990):
  • 4.9.7.4 The fputs function

See also

prints formatted output to stdout , a file stream or a buffer
(function)
writes a character string to stdout
(function)
gets a character string from a file stream
(function)