public inbox for glibc-bugs@sourceware.org help / color / mirror / Atom feed
* [Bug manual/31019] New: The documentation of feenableexcept is incomplete @ 2023-11-01 1:29 bruno at clisp dot org 2023-11-01 1:30 ` [Bug manual/31019] " bruno at clisp dot org ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: bruno at clisp dot org @ 2023-11-01 1:29 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=31019 Bug ID: 31019 Summary: The documentation of feenableexcept is incomplete Product: glibc Version: 2.35 Status: UNCONFIRMED Severity: normal Priority: P2 Component: manual Assignee: unassigned at sourceware dot org Reporter: bruno at clisp dot org CC: mtk.manpages at gmail dot com Target Milestone: --- Created attachment 15202 --> https://sourceware.org/bugzilla/attachment.cgi?id=15202&action=edit test case foo.c The attached simple program, that enables floating-point exception traps on FE_INVALID, when the exception flag for FE_INVALID is already set, show CPU dependent behaviour. How to reproduce: 1. Compile it with: ${CC-gcc} -ggdb -Wall foo.c -lm 2. Run it with: ./a.out; echo $? Results with glibc: x86_64 0 i386 Floating point exception (core dumped) arm64 3 armelhf 3 armel 3 hppa 0 ia64 0 loongarch64 0 m68k 0 mips 0 mips64 0 powerpc Floating point exception powerpc64 Floating point exception powerpc64le Floating point exception riscv64 3 s390 0 s390x 0 sh4 0 sparc 0 sparc64 0 I think that it is not possible to make i386 and powerpc* behave like the other CPU types; see https://lists.gnu.org/archive/html/bug-gnulib/2023-10/msg00104.html for why. Nevertheless it is surprising to see platform-dependent behaviour. This was also the reason for bug#16209. Since the function feenableexcept is not defined by a standard, the definitive documentation is the glibc manual. If there is a situation where the results are undefined or platform-dependent, the documentation should tell so. -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug manual/31019] The documentation of feenableexcept is incomplete 2023-11-01 1:29 [Bug manual/31019] New: The documentation of feenableexcept is incomplete bruno at clisp dot org @ 2023-11-01 1:30 ` bruno at clisp dot org 2023-11-01 1:32 ` bruno at clisp dot org 2023-12-19 18:38 ` adhemerval.zanella at linaro dot org 2 siblings, 0 replies; 4+ messages in thread From: bruno at clisp dot org @ 2023-11-01 1:30 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=31019 Bruno Haible <bruno at clisp dot org> changed: What |Removed |Added ---------------------------------------------------------------------------- Host| |i386-linux-gnu, | |powerpc-linux-gnu See Also| |https://sourceware.org/bugz | |illa/show_bug.cgi?id=16209 -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug manual/31019] The documentation of feenableexcept is incomplete 2023-11-01 1:29 [Bug manual/31019] New: The documentation of feenableexcept is incomplete bruno at clisp dot org 2023-11-01 1:30 ` [Bug manual/31019] " bruno at clisp dot org @ 2023-11-01 1:32 ` bruno at clisp dot org 2023-12-19 18:38 ` adhemerval.zanella at linaro dot org 2 siblings, 0 replies; 4+ messages in thread From: bruno at clisp dot org @ 2023-11-01 1:32 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=31019 --- Comment #1 from Bruno Haible <bruno at clisp dot org> --- Created attachment 15203 --> https://sourceware.org/bugzilla/attachment.cgi?id=15203&action=edit proposed documentation fix Find attached a proposed documentation improvement. -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug manual/31019] The documentation of feenableexcept is incomplete 2023-11-01 1:29 [Bug manual/31019] New: The documentation of feenableexcept is incomplete bruno at clisp dot org 2023-11-01 1:30 ` [Bug manual/31019] " bruno at clisp dot org 2023-11-01 1:32 ` bruno at clisp dot org @ 2023-12-19 18:38 ` adhemerval.zanella at linaro dot org 2 siblings, 0 replies; 4+ messages in thread From: adhemerval.zanella at linaro dot org @ 2023-12-19 18:38 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=31019 Adhemerval Zanella <adhemerval.zanella at linaro dot org> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|unassigned at sourceware dot org |adhemerval.zanella at linaro dot o | |rg CC| |adhemerval.zanella at linaro dot o | |rg Target Milestone|--- |2.39 Resolution|--- |FIXED Status|UNCONFIRMED |RESOLVED --- Comment #2 from Adhemerval Zanella <adhemerval.zanella at linaro dot org> --- Fixed on 2.39 (e55599e0286655dd5f1f5b48005a17be37cc7f2c). -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-12-19 18:38 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-11-01 1:29 [Bug manual/31019] New: The documentation of feenableexcept is incomplete bruno at clisp dot org 2023-11-01 1:30 ` [Bug manual/31019] " bruno at clisp dot org 2023-11-01 1:32 ` bruno at clisp dot org 2023-12-19 18:38 ` adhemerval.zanella at linaro dot org
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).