Open Watcom FORTRAN 77 Language Reference

FORTRAN Statements
CARRIAGECONTROL = cc
cc is a character variable or character array element. Open Watcom FORTRAN 77 also
permits cc to be a character substring.
It is assigned the value ’YES’ if the first character of each record is interpreted as a
carriage control character and ’NO’ if no interpretation is placed on the first character of
each record.
RECORDTYPE = rct
rct is a character variable or character array element. Open Watcom FORTRAN 77 also
permits rct to be a character substring.
It is assigned a value that represents the record type (or record structure) that is used for the
file. The value assigned depends on the system on which you are running the program.
See the compiler User’s Guide for a discussion of record types.
BLOCKSIZE = bl
bl is an integer variable or integer array element.
It is assigned a value that represents the internal buffer size that is used for input/output
operations on the file. The value assigned depends on the system on which you are running
the program. See the compiler User’s Guide for a discussion of default internal buffer size.
2.55.4 Definition Status of Specifiers - Inquire by File
The following table summarizes which specifier variables or array elements become defined with values
under what conditions when using the FILE= specifier.
IOSTAT = ios (1)
EXIST = ex (2)
OPENED = od (2)
NUMBER = num (4)
NAMED = nmd (3)
NAME = fn (3)
ACCESS = acc (5)
SEQUENTIAL = seq (3)
DIRECT = dir (3)
FORM = fm (5)
FORMATTED = fmt (3)
UNFORMATTED = unf (3)
RECL = rcl (5)
NEXTREC = nr (5)
BLANK = blnk (5)
ACTION = act (5)
CARRIAGECONTROL = cc (5)
RECORDTYPE = rct (5)
BLOCKSIZE = bl (5)
1. The IOSTAT= specifier variable is always defined with the most recent error status. If an error
occurs during execution of the INQUIRE statement then the error status is defined with a
positive integer; otherwise the status is that of the most recent input/output statement which
referenced that file.
2. The specifier always becomes defined unless an error condition occurs.
INQUIRE Statement 97