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authorPaul Eggert <eggert@cs.ucla.edu>2018-08-17 00:25:20 -0700
committerPaul Eggert <eggert@cs.ucla.edu>2018-08-17 00:26:19 -0700
commit64eb9b71da7c3c34541929c1b0dfb7f0c11d3d88 (patch)
tree0b905edf417cb3e62706d84e5776a2a26065453f /src/w32proc.c
parent3b9017b5ba6b7041fbf70691092533286cc9b98d (diff)
downloademacs-64eb9b71da7c3c34541929c1b0dfb7f0c11d3d88.tar.gz
Fix problems with logxor etc. and fixnums
These operations incorrectly treated negative fixnums as bignums greater than most-positive-fixnum. * src/alloc.c (mpz_set_intmax_slow): Avoid undefined behavior if signed unary negation overflows, while we’re in the neighborhood. (mpz_set_uintmax_slow): Remove. All uses removed. * src/data.c (arith_driver): Treat fixnums as signed, not unsigned, even for logical operations. * src/lisp.h (mpz_set_uintmax): Remove. All uses removed. * test/src/data-tests.el (data-tests-logand) (data-tests-logior, data-tests-logxor): New tests.
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