| commit | 74f87fd111904e5156727c72590d6fc4f67e8366 | |
| author | Paul Eggert <eggert@cs.ucla.edu> | |
| Fri, 3 Mar 2017 17:17:51 +0000 (3 09:17 -0800) | ||
| committer | Paul Eggert <eggert@cs.ucla.edu> | |
| Fri, 3 Mar 2017 17:19:08 +0000 (3 09:19 -0800) | ||
| tree | f6802878c5105def6d6889d5b8f71e4fe9285b79 | treesnapshot (tar.gz zip) |
| parent | f1fe3fcfc568c1527714ff3a95e678816e2787d4 | commitdiff |
logb now works correctly on large integers
* admin/merge-gnulib (GNULIB_MODULES): Add count-leading-zeros.
* etc/NEWS: Document the change.
* lib/count-leading-zeros.c, lib/count-leading-zeros.h:
* m4/count-leading-zeros.m4: New files, copied from Gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* src/floatfns.c: Include count-leading-zeros.h.
(Flogb): Do not convert fixnum to float before taking the log,
as the rounding error can cause the answer to be off by 1.
* src/lisp.h (EMACS_UINT_WIDTH): New constant.
* test/src/floatfns-tests.el (logb-extreme-fixnum): New test.
* admin/merge-gnulib (GNULIB_MODULES): Add count-leading-zeros.
* etc/NEWS: Document the change.
* lib/count-leading-zeros.c, lib/count-leading-zeros.h:
* m4/count-leading-zeros.m4: New files, copied from Gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* src/floatfns.c: Include count-leading-zeros.h.
(Flogb): Do not convert fixnum to float before taking the log,
as the rounding error can cause the answer to be off by 1.
* src/lisp.h (EMACS_UINT_WIDTH): New constant.
* test/src/floatfns-tests.el (logb-extreme-fixnum): New test.
| admin/merge-gnulib | diffblobblamehistory | |
| etc/NEWS | diffblobblamehistory | |
| lib/count-leading-zeros.c | [new file with mode: 0644] | blob |
| lib/count-leading-zeros.h | [new file with mode: 0644] | blob |
| lib/gnulib.mk | diffblobblamehistory | |
| m4/count-leading-zeros.m4 | [new file with mode: 0644] | blob |
| m4/gnulib-comp.m4 | diffblobblamehistory | |
| src/floatfns.c | diffblobblamehistory | |
| src/lisp.h | diffblobblamehistory | |
| test/src/floatfns-tests.el | diffblobblamehistory |