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De - Pt| English Dictionary: Pli | by the DICT Development Group |
| 1 result for Pli | |
| From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
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PL/I Programming Language One. An attempt to combine the best features of {Fortran}, {COBOL} and {ALGOL 60}. Developed by George Radin of {IBM} in 1964. Originally named NPL and Fortran VI. The result is large but elegant. PL/I was one of the first languages to have a formal {semantic} definition, using the {Vienna Definition Language}. {EPL}, a dialect of PL/I, was used to write almost all of the {Multics} {operating system}. PL/I is still widely used internally at {IBM}. The PL/I standard is ANS X3.53-1976. PL/I has no {reserved word}s. Types are fixed, float, complex, character strings with maximum length, bit strings, and label variables. {Array}s have lower bounds and may be dynamic. It also has summation, multi-level structures, {structure assignment}, untyped pointers, {side effect}s and {aliasing}. {Control flow} constructs include goto; do-end groups; do-to-by-while-end loops; external procedures; internal nested procedures and blocks; {generic procedure}s and {exception handling}. Procedures may be declared {recursive}. Many implementations support {concurrency} ('call task' and 'wait(event)' are equivalent to {fork}/join) and compile-time statements. {LPI} is a PL/I {interpreter}. ["A Structural View of PL/I", D. Beech, Computing Surveys, 2,1 33-64 (1970)]. (1994-10-25) | |
