|1.||Y, the twenty-fifth letter of the English alphabet, at the beginning of a word or syllable, except when a prefix (see Y-), is usually a fricative vocal consonant; as a prefix, and usually in the middle or at the end of a syllable, it is a vowel. See Guide to Pronunciation, 145, 178-9, 272.|
|n.||1.||(Railroads) Something shaped like the letter |
|Noun||1.||Y - a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys|
|2.||Y - the 25th letter of the Roman alphabet|
|1.||Y - General purpose language syntactically like RATFOR,
semantically like C. Lacks structures and pointers. Used
as a source language for Jack W. Davidson and Christopher
W. Fraser's peephole optimiser which inspired GCC RTL and
other optimisation ideas.|
ftp://ftp.cs.princeton.edu/pub/y+po.tar.Z. It is a copy of the original distribution from the University of Arizona during the early 80's, totally unsupported.
["The Y Programming Language", D.R. Hanson, SIGPLAN Notices 16(2):59-68 (Feb 1981)].
[Jack W. Davidson and Christopher W. Fraser, "The Design and Application of a Retargetable Peephole Optimiser", TOPLAS, Apr. 1980].
[Jack W. Davidson, "Simplifying Code Through Peephole Optimisation" Technical Report TR81-19, The University of Arizona, Tucson, AZ, 1981].
[Jack W. Davidson and Christopher W. Fraser, "Register Allocation and Exhaustive Peephole Optimisation" Software-Practice and Experience, Sep. 1984].
|2.||Y - See fixed point combinator.|