Open Watcom FORTRAN 77 Language Reference

FORTRAN Statements
2.85 WRITE Statement
WRITE (cilist) [olist]
where:
cilist
is a control information list of specifiers separated by commas:
[UNIT =] u
[FMT =] f
REC = rn
IOSTAT = ios
ERR = s
olist
is an output list.
The WRITE statement is used to transfer data from the executing FORTRAN program to an external device
or file.
Control Information List
[UNIT =] u
u is an external unit identifier or an internal file identifier.
1. An external unit identifier is a non-negative integer expression or an asterisk
(*) in which case unit 6 is assumed.
2. An internal file identifier is the name of a character variable, character array,
character array element, or character substring.
If the optional UNIT= specifier is omitted then the unit specifier must be the first item in
the list of specifiers.
[FMT =] f
f is a format identifier. A format identifier is one of the following:
1. A statement label of a FORMAT statement that appears in the same program unit
as the format identifier.
2. An integer variable name that has been assigned the statement label of a
FORMAT statement that appears in the same program unit as the format identifier
(see the ASSIGN statement).
3. An integer array name.
4. A character array name.
5. Any character expression except one involving the concatenation of an operand
whose length specification is (*) unless the operand is a symbolic constant (see
the PARAMETER statement).
6. An asterisk (*), indicating list-directed formatting.
7. A NAMELIST name, indicating namelist-directed formatting.
If the optional FMT= specifier is omitted then the format specifier must be the second item
in the list of specifiers and UNIT= must not be specified for the first item in the list.
WRITE Statement 147