run-time library

run-time library

[′rən ¦tīm ′lī‚brer·ē] (computer science) A collection of general-purpose routines that form part of a language translator and allow computer programs to be run with a particular operating system.

run-time library

(operating system, programming, library)A file containingroutines which are linked with a program at run time ratherthan at compile-time. The advantage of such dynamic linking is that only one copy of the library needs to bestored, rather than a copy being included with eachexecutable that refers to it. This can greatly reduce thedisk space occupied by programs. Furthermore, it means thatall programs immediately benefit from changes (e.g. bugfixes) to the single copy of the library without requiringrecompilation. Since the library code is normally classifiedas read-only to the memory management system, it is possiblefor a single copy of the library to be loaded into memory andshared by all active programs, thus reducing RAM andvirtual memory requirements and program load time.