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Diffstat (limited to 'RELNOTES')
| -rw-r--r-- | RELNOTES | 64 |
1 files changed, 64 insertions, 0 deletions
@@ -1,3 +1,67 @@ + TXR 226 + 2019-10-25 + + + Features + + - New data types: binary search trees and their nodes. + + - buffers: + - now comparable for inequality with less function. + - convenience functions buf-str and str-buf for + converting between a string and a buffer holding UTF-8. + - gc: + - Heap objects are now more strictly aligned in memory, + allowing for a faster in-heap test in the garbage collector. + - hashing: + - Better use is made of the hash seed for lists and vectors. + - New feature: eq-based hash tables. + - Performance improvements: recompile time of the .tl files + in stdlib improved by 10%. + - eval & environments: + - symbol-function supports lambda expressions. + - accessors now provided for additional function properties: + - number of fixed and optional args + - is the function variadic + - op: + - new @rec metavar for self reference, allowing anonymous recursion + - do behavior revised in light of mismatch between documentation + and implementation. + - new macro ldo: version of do that inserts left argument. + - lib: + - copy-cons now copies lconses and is more efficient. + + Bugs + + - Build: added forgotten "alloca.h" header into version control. + - Improved overflow detection in string catenation. + - gc: + - fixed bug in heap bounding box calculation, making + the in-heap test less efficient. + - func-get-name: bogus return for nil argument. + - stdlib: numerous incorrect uses of compile-error. + - circle notation: + - on read, not handling circular refs in hash userdata. + - lib: + - memory leak in bit function. + - fixed buggy type tests that application code could subvert. + - affects hashes, carrays, random-state objects, regex char sets and + struct types. + - hash: + - use unsigned type ucnum consistently for hash values. + - do not negatively index into hash table vector. + - traversal limit observed when traversing keys that are vectors + and hashes. + - strings keys now subject to traversal limit, at a rate of 4:1: + four characters count as traversing one node in the object graph. + - eval: + - eval function wrongly passed eval environment to macroexpand. + - lib/vm/compiler: + - not handling excess number of function arguments, leading + to overflow in the fixparam field in the function object. + + + TXR 225 2019-09-11 |