Date: Sat, 19 Dec 2009 23:04:29 -0800 From: "Arthur A. Gleckler" <a...@speechcode.com>
On a related note, in a recent build, I noticed some of my code failing sporadically to find certain values in EQ hash tables. Depending on the order in which the code was loaded, one particular symbol value would be missing from one such table, which was used to represent a set of symbols. I haven't had a chance to track that down. I did spend a few hours trying to create a reproducible test case, but failed. Could this have been caused by the keys being held weakly? In this hash table, the keys are symbols and the values are always #t. If you were using MAKE-EQ-HASH-TABLE to make a hash table keyed by symbols, then this is probably caused by my 2009-12-02 change, commit 056bfc369b57df0864fd88f40ce26cd0e5da75ed, which enables garbage collection of interned symbols without global bindings. If so, try using MAKE-STRONG-EQ-HASH-TABLE rather than MAKE-EQ-HASH-TABLE. _______________________________________________ MIT-Scheme-devel mailing list MIT-Scheme-devel@gnu.org http://lists.gnu.org/mailman/listinfo/mit-scheme-devel
