Portability Function: Returns the full path for a specified file or directory.
result = FULLPATHQQ (name, pathbuf)
(Input) Character*(*). Item for which you want the full path. Can be the name of a file in the current directory, a relative directory or file name, or a network uniform naming convention (UNC) path.
(Output) Character*(*). Buffer to receive full path of the item specified in name.
The result type is INTEGER(4). The result is the length of the full path in bytes, or 0 if the function fails. This function does not verify that the resulting path and file name are valid nor that they exist.
The length of the full path depends upon how deeply the directories are nested on the drive you are using. If the full path is longer than the character buffer provided to return it ( pathbuf), FULLPATHQQ returns only that portion of the path that fits into the buffer.
Check the length of the path before using the string returned in pathbuf. If the longest full path you are likely to encounter does not fit into the buffer you are using, allocate a larger character buffer. You can allocate the largest possible path buffer with the following statements:
$MAXPATH is a symbolic constant defined in
IFPORT.F90 as 260.
DO WHILE (.TRUE.)
WRITE (*,'(A, \)') ' Enter filename (Hit &
RETURN to exit): '
len = GETSTRQQ(file)
IF (len .EQ. 0) EXIT
len = FULLPATHQQ(file, buf)
IF (len .GT. 0) THEN
WRITE (*,*) buf(:len)
WRITE (*,*) 'Can''t get full path'
! Split path
len = SPLITPATHQQ(buf, drive, dir, name, ext)
IF (len .NE. 0) THEN
WRITE (*, 900) ' Drive: ', drive
WRITE (*, 900) ' Directory: ', dir(1:len)
WRITE (*, 900) ' Name: ', name
WRITE (*, 900) ' Extension: ', ext
WRITE (*, *) 'Can''t split path'
900 FORMAT (A, A)