Subroutine package: Difference between revisions

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A '''subroutine package''' (commonly called a '''library''') is a group of [[subroutine]]s which support some particular functionality.
A '''subroutine package''' (often called a 'library') is a group of [[subroutine]]s which support some particular functionality.


On early machines which did not support [[floating point]], it was common to have a floating point library. For commercial applications, which often use [[binary-coded decimal]] for arbitrary-[[precision]] numbers, a library implementing them was often provided on machines which lacked hardware support for BCD.
For example, on early machines which did not support [[floating point]] in [[hardware]], it was common to have a floating point library. For commercial applications, which often use [[binary-coded decimal]] for arbitrary-[[precision]] numbers, a library implementing them was often provided on machines which lacked hardware support for BCD.


In the [[C (programming language)|C]] [[programming language]], which does not include I/O as part of the language, the [[Standard I/O Library]] is a [[portable]] way to peform I/O.
In the [[C (programming language)|C]] [[programming language]], which does not include I/O as part of the language, the [[Standard I/O Library]] is a [[portable]] library which provides a standard way to peform I/O on many systems which C runs on.

Revision as of 22:28, 1 April 2018

A subroutine package (often called a 'library') is a group of subroutines which support some particular functionality.

For example, on early machines which did not support floating point in hardware, it was common to have a floating point library. For commercial applications, which often use binary-coded decimal for arbitrary-precision numbers, a library implementing them was often provided on machines which lacked hardware support for BCD.

In the C programming language, which does not include I/O as part of the language, the Standard I/O Library is a portable library which provides a standard way to peform I/O on many systems which C runs on.