ISO/IEC 10967

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ISO/IEC 10967 , Language independent arithmetic ( LIA ), is a series of standards on computer arithmetic. It is compatible with ISO/IEC/IEEE 60559:2011, more known as IEEE 754-2008 , and much of the specifications are for IEEE 754 special values (though such values are not required by LIA itself, unless the parameter iec ₅₅₉ is true ). It was developed by the working group ISO/IEC JTC1/SC22 /WG11, which was disbanded in 2011. ^[1]

LIA consists of three parts:

• Part 1: Integer and floating point arithmetic , second edition published 2012.
• Part 2: Elementary numerical functions , first edition published 2001.
• Part 3: Complex integer and floating point arithmetic and complex elementary numerical functions , first edition published 2006.

Parts [ edit ]

Part 1 [ edit ]

Part 1 deals with the basic integer and floating point datatypes (for multiple radices, including 2 and 10), but unlike IEEE 754-2008 not the representation of the values. Part 1 also deals with basic arithmetic, including comparisons, on values of such datatypes. The parameter iec ₅₅₉ is expected to be true for most implementations of LIA-1.

Part 1 was revised, to the second edition, to become more in line with the specifications in parts 2 and 3.

Part 2 [ edit ]

Part 2 deals with some additional "basic" operations on integer and floating point datatype values, but focuses primarily on specifying requirements on numerical versions of elementary functions . Much of the specifications in LIA-2 are inspired by the specifications in Ada for elementary functions.

Part 3 [ edit ]

Part 3 generalizes parts 1 and 2 to deal with imaginary and complex datatypes and arithmetic and elementary functions on such values. Much of the specifications in LIA-3 are inspired by the specifications for imaginary and complex datatypes and operations in C , Ada and Common Lisp .

Bindings [ edit ]

Each of the parts provide suggested bindings for a number of programming languages. These are not part of the LIA standards, just suggestions, and are not complete. Authors of a programming language standard may wish to alter the suggestions before any incorporation in the programming language standard.

The C99 , C11 and C17 standards for C , and in 2013, the standards for C++ and Modula-2 , have partial bindings to LIA-1. ^{[ clarification needed ]}

See also [ edit ]

• IEEE 754 , Standard for Floating-Point Arithmetic
• ISO/IEC 11404 , General purpose datatypes

References [ edit ]

External links [ edit ]

• ISO/IEC 10967-1:2012 , complete text of Part 1: Integer and floating point arithmetic .
• ISO/IEC 10967-2:2001 , complete text of Part 2: Elementary numerical functions .
• ISO/IEC 10967-3:2006 , complete text of Part 3: Complex integer and floating point arithmetic and complex elementary numerical functions .