6.71 FPUT — Write a single character in stream mode to stdout

Description:

Write a single character in stream mode to stdout by bypassing normal formatted output. Stream I/O should not be mixed with normal record-oriented (formatted or unformatted) I/O on the same unit; the results are unpredictable.

This intrinsic is provided in both subroutine and function forms; however, only one form can be used in any given program unit.

Note that the FGET intrinsic is provided for backwards compatibility with g77. GNU Fortran provides the Fortran 2003 Stream facility. Programmers should consider the use of new stream IO feature in new code for future portability. See also Fortran 2003 status.

Standard:

GNU extension

Class:

Subroutine, function

Syntax:

CALL FPUT(C [, STATUS])

Arguments:

C	The type shall be CHARACTER.
STATUS	(Optional) status flag of type INTEGER. Returns 0 on success, -1 on end-of-file and a system specific positive error code otherwise.

Example:

          PROGRAM test_fput
            CHARACTER(len=10) :: str = "gfortran"
            INTEGER :: i
            DO i = 1, len_trim(str)
              CALL fput(str(i:i))
            END DO
          END PROGRAM
     

See also:

FPUTC, FGET, FGETC