PIBw.d Informat

Reads positive integer binary (fixed-point) values.

Category:	Numeric
Interaction:	List input is incompatible with binary input when this informat is specified in an INFORMAT= statement or an ATTRIB= statement using the INFORMAT= argument. SAS issues a warning and uses formatted input to read the data.
See:	PIBw.d Informat: UNIX in SAS Companion for UNIX Environments
See:	PIBw.d Informat: Windows in SAS Companion for Windows

Syntax

Syntax

PIBw.d

Syntax Description

w

specifies the width of the input field.

Default	1
Range	1–8

d

specifies the power of 10 by which to divide the value. This argument is optional.

Range

0–10

Details

All values are treated as positive. PIBw.d reads positive integer binary values with consistent results if the values are created in the same type of operating environment that you use to run SAS.

Note: Different operating environments store positive integer binary values in different ways. This concept is called byte ordering. For a detailed discussion about byte ordering, see Byte Ordering for Integer Binary Data on Big Endian and Little Endian Platforms .

Comparisons

Positive integer binary values are the same as integer binary values except that the sign bit is part of the value, which is always a positive integer. The PIBw.d informat treats all values as positive and includes the sign bit as part of the value.
The PIBw.d informat with a width of 1 results in a value that corresponds to the binary equivalent of the contents of a byte. The binary equivalent of the contents of a byte is useful if your data contain values between hexadecimal 80 and hexadecimal FF, where the high-order bit can be misinterpreted as a negative sign.
The IBw.d and PIBw.d informats are used to read native format integers. (Native format enables you to read and write values that are created in the same operating environment.) The IBRw.d and PIBRw.d informats are used to read little endian integers in any operating environment.

To view a table that shows the type of informat to use with big endian and little endian integers, see Reading Data Generated on Big Endian or Little Endian Platforms.

To view a table that compares integer binary notation in several programming languages, see Integer Binary Notation and Different Programming Languages.

Example

You can use the INPUT statement and specify the PIB informat. However, in these examples, we use the informat with the INPUT function, where binary input values are described by using a hexadecimal literal.

x=input('0100'x,pib2.);
y=input('0001'x,pib2.);

SAS Statement	Result on Big Endian Platforms	Result on Little Endian Platforms
put x=; put y=;	256 1	1 256

PIBw.d Informat

Syntax

Syntax Description

w

d

Details

Comparisons

Example

See Also