HP Fortran Programmer's Reference (September 2007)

I/O formatting

Edit descriptors

Chapter 9 241

The following sections describe the edit descriptors.

NOTE There is no single edit descriptor that deﬁnes a ﬁeld for complex data. Instead,

you must use two real edit descriptors—the ﬁrst for the real part of the number,

and the second for the imaginary part. The two edit descriptors may be

different or the same, and you can insert control and character string edit

descriptors between them.

Likewise, there are no edit descriptors for formatting derived types and

pointers. For derived types, you must specify the appropriate sequence of edit

descriptors that match the data types of the derived type’s components. For

pointers, you must specify the edit descriptor that matches the type of the

target object.

Character string (’...’ or ”...”) edit descriptor

The character string edit descriptor is used to write a character constant to a formatted

output record. It cannot be used to format input. You can use either apostrophes or quotation

marks to delimit the constant. Whichever you use, they must be balanced. That is, if you begin

with an apostrophe, you must also end with it. If the enclosed character constant includes a

P Control No Input/output Set scale factor to

Q Control No Input Return number of bytes

remaining to be read in

current input record.

S or SP Control No Output Print optional plus sign.

SS Control No Output Do not print optional plus sign.

Control No Input/output Move to column

Control No Input/output Move

columns to the left.

X Control No Input/output Move

columns to the right.

[

]] Data Yes Input/output Convert integer data, using

hexadecimal base.

Table 9-1 Edit descriptors (Continued)

Descriptor Type Repeatable? I/O use Function