# HG changeset patch # User Jaroslav Hajek # Date 1228380750 -3600 # Node ID 34960ba08a811406a54a5c03b05369db8cc95942 # Parent 584d9e80556bbbf7d30ea98739395c314be46de3 document more new features in the NEWS file diff -r 584d9e80556b -r 34960ba08a81 ChangeLog --- a/ChangeLog Thu Dec 04 09:27:17 2008 +0100 +++ b/ChangeLog Thu Dec 04 09:52:30 2008 +0100 @@ -1,3 +1,7 @@ +2008-12-04 Jaroslav Hajek + + * NEWS: Document more new features. + 2008-12-03 John W. Eaton * config.guess, config.sub: Update from FSF sources. diff -r 584d9e80556b -r 34960ba08a81 NEWS --- a/NEWS Thu Dec 04 09:27:17 2008 +0100 +++ b/NEWS Thu Dec 04 09:52:30 2008 +0100 @@ -109,4 +109,17 @@ The underlying code used for indexing of arrays has been completely rewritten and so the indexing of arrays is now significantly faster. + ** 64-bit integer arithmetic + Arithmetic with 64-bit integers (int64 and uint64 types) is fully supported, + with saturation semantics like the other integer types. Most of the integer + arithmetic operations was rewritten to exploit integer arithmetic in the CPU + efficiently. As a result, performance was significantly improved. + + ** Diagonal and permutation matrices + The interpreter can now treat diagonal and permutation matrices as special + objects, rather than general full matrices. Therefore, it is now possible + to construct & use these matrices in linear algebra without suffering a + performance penalty. + + See NEWS.3 for old news.