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fputs

From cppreference.com
< c‎ | io
 
 
File input/output


Functions
File access
Direct input/output
Unformatted input/output
fputs
(until C11)(since C11)
(C95)(C95)
(C95)
(C95)(C95)
(C95)
(C95)
Formatted input
Formatted output
File positioning
Error handling
Operations on files
 

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 given null-terminated character string to the given output stream.

Contents

[edit] Parameters

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

[edit] Return value

Non-negative integer on success, EOF on failure.

[edit] Example

fputs() with error checking

#include <stdio.h>
#include <stdlib.h>
 
int main(void)
{
    int ret_code = fputs("Hello World",stdout);
    if ((ret_code == EOF) && (ferror(stdout)))   /* test whether EOF was reached */
    {
       perror("fputs()");
       fprintf(stderr,"fputs() failed in file %s at line # %d\n", __FILE__,__LINE__-4);
       exit(EXIT_FAILURE);
    }
 
    return EXIT_SUCCESS;
}

Output:

Hello World

[edit] References

  • 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):

[edit] See also

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