Generates an IEEE floating-point value by multiplying a number
by 10 raised to the dth power
| Category: |
Numeric
|
| Alignment: |
left
|
-
w
-
specifies the width of the output field.
| Default: |
8 |
| Range: |
3-8 |
| Tip: |
If w
is 8, an IEEE double-precision, floating-point number is written. If w is 5, 6, or 7, an IEEE double-precision, floating-point number
is written, which assumes truncation of the appropriate number of bytes. If w is 4, an IEEE single-precision floating-point number is
written. If w is 3, an IEEE single-precision,
floating-point number is written, which assumes truncation of one byte. |
-
d
-
optionally specifies to multiply the number
by 10d.
This format is useful in operating environments where
IEEEw.d is the floating-point
representation that is used. In addition, you can use the IEEEw.d format to create files that
are used by programs in operating environments that use the IEEE floating-point
representation.
Typically, programs generate IEEE values in single-precision
(4 bytes) or double-precision (8 bytes). Programs perform truncation solely
to save space on output files. Machine instructions require that the floating-point
number be one of the two lengths. The IEEEw.d format allows other lengths, which enables you to write data
to files that contain space-saving truncated data.
test1=put(x,ieee4.);
put test1 $hex8.;
test2=put(x,ieee5.);
put test2 $hex10.;
Copyright © 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.
