Open Watcom FORTRAN 77 Language Reference

11 Format
11.1 Introduction
A format specification used in conjunction with formatted I/O provides a means of specifying the way
internal data is converted to a character string and vice versa. A format specification can be given in two
ways.
1. In a FORMAT statement.
2. As values of character expressions or character arrays.
11.2 The FORMAT Statement
The form of a FORMAT statement is
label
FORMAT fs
where:
label
fs
is the statement label used by an I/O statement to identify the FORMAT statement.
is a format specification which will be described later.
Example:
REAL X
X = 234.43
PRINT 100, X
100 FORMAT(F10.2)
END
In the previous example, the PRINT statement uses the format specification in the FORMAT statement
whose statement label is 100 to display the value of X.
11.3 FORMAT as a Character Expression
Instead of specifying the statement label of a FORMAT statement, a character expression can be used. The
previous example could be modified as follows and achieve the identical result.
FORMAT as a Character Expression 225