The I edit descriptor transfers decimal integer values. It takes the following form:

Iw[.m]

The value of *m* (the minimum number of digits in the
constant) must not exceed the value of *w* (the field width).
The *m* has no effect on input, only output.

The specified I/O list item must be of type integer or logical.

The G edit descriptor can be used to edit integer data; it follows
the same rules as I*w*.

On input, the I data edit descriptor transfers *w* characters
from an external field and assigns their integer value to the
corresponding I/O list item. The external field data must be an
integer constant.

If the value exceeds the range of the corresponding input list item, an error occurs.

The following shows input using the I edit descriptor (the symbol ^ represents a nonprinting blank character):

Format Input ValueI4 2788 2788 I3 -26 -26 I9 ^^^^^^312 312

On output, the I data edit descriptor transfers the value of the
corresponding I/O list item, right-justified, to an external field
that is *w* characters long.

The field consists of zero or more blanks, followed by a sign (a plus sign is optional for positive values, a minus sign is required for negative values), followed by an unsigned integer constant with no leading zeros.

If *m* is specified, the unsigned integer constant must have
at least *m* digits. If necessary, it is padded with leading
zeros.

If *m* is zero, and the output list item has the value zero,
the external field is filled with blanks.

The following shows output using the I edit descriptor (the symbol ^ represents a nonprinting blank character):

Format Value OutputI3 284 284 I4 -284 -284 I4 0 ^^^0 I5 174 ^^174 I2 3244 ** I3 -473 *** I7 29.812 An error; the decimal point is invalid I4.0 0 ^^^^ I4.2 1 ^^01 I4.4 1 0001

- On the form for data edit descriptors, see Section 11.2.1.
- On general rules for numeric editing, see Section 11.2.2.

Previous Page Next Page Table of Contents