ecl-devel July 2022

ecl-devel@common-lisp.net

4 participants
2 discussions

bug in (log)
by James Cloos 10 Nov '22

10 Nov '22

(gitlab is uusable; i have to report here.) ecl 21.2.1 gives: > (log 1/6319748715279270675921934218987893281199411530039296) Debugger received error of type: DIVISION-BY-ZERO #<a DIVISION-BY-ZERO 0x7ff5afe6c540> Error flushed. whereas other cl's (i testyed sbcl and ccl) give results like: ? (log 1/6319748715279270675921934218987893281199411530039296) -119.27552 I tested on amd64 (gentoo) and arm64 (debian and netbsd) with identical results. i did not have a musl box or other bsd to test on. run with --no-trap-fpe, the result is #<single-float negative infinity>. another example is: (truncate (log 1/6319748715279270675921934218987893281199418867)) Debugger received error of type: ARITHMETIC-ERROR #<a ARITHMETIC-ERROR 0xffff8f688a40> whereas this works: (truncate (log 1/631974871527927067592193421898789328119941867)) -103 -0.27893066 which of course suggests that the issue is c's long double's precision. it looks like ecl could use an mpq log function; https://github.com/linas/anant might work. -JimC -- James Cloos <cloos(a)jhcloos.com> OpenPGP: 0x997A9F17ED7DAEA6

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--norc --shell fails
by James Cloos 03 Jul '22

03 Jul '22

with 21.2.1, when running a script which has hash-bang line: #!/usr/bin/ecl --norc --shell i get: Unknown command line option --norc --shell. in general, hash-bang lines can only have an executable and zero or one options. the filename is not added when there are two options. it would be best if there were single-character options for --norc and --shell, so they could be combined into one -option. or, alternatively, --shell might imply --norc and there could be a function in ext: which runs the rc file(s) for those times (if any) when --rc --shell would be preferred. -JimC -- James Cloos <cloos(a)jhcloos.com> OpenPGP: 0x997A9F17ED7DAEA6

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ecl-devel July 2022