C Library Functions  - system_isfifo (3)

NAME
system_isfifo(3f) - [M_system:QUERY_FILE] checks if argument is a fifo - named pipe (LICENSE:PD)

CONTENTS

Synopsis
Description
Options
Return Value
Errors
See Also
Examples

SYNOPSIS
elemental impure logical function system_isfifo(pathname) 

     character(len=*),intent(in) :: pathname
     logical                     :: system_isfifo

DESCRIPTION
The isfifo(3f) function checks if path is a path to a fifo - named pipe.

OPTIONS
path a character string representing a fifo - named pipe pathname. Trailing spaces are ignored.

RETURN VALUE
The system_isfifo() function should always be successful and no return value is reserved to indicate an error.

ERRORS
No errors are defined.

SEE ALSO
system_isreg(3f), system_stat(3f), system_isdir(3f), system_perm(3f)

EXAMPLES
check if filename is a FIFO file 

   program demo_system_isfifo
   use M_system, only : system_isfifo
   implicit none
   integer                     :: i
   character(len=80),parameter :: names(*)=[ &
   ’/tmp            ’, &
   ’/tmp/NOTTHERE   ’, &
   ’/usr/local      ’, &
   ’.               ’, &
   ’fifo.test       ’, &
   ’PROBABLY_NOT    ’]
   do i=1,size(names)
      write(*,*)’ is ’,trim(names(i)),’ a fifo(named pipe)? ’, &
              & system_isfifo(names(i))
   enddo
   end program demo_system_isfifo

Nemo Release 3.1 system_isfifo (3) June 29, 2025
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