From: "Christian Biesinger via gdb-patches" <gdb-patches@sourceware.org>
To: Tom Tromey <tom@tromey.com>
Cc: Eli Zaretskii <eliz@gnu.org>, gdb-patches <gdb-patches@sourceware.org>
Subject: Re: [PATCH 2/3] Cast the log10 argument to double to disambiguate it
Date: Thu, 19 Dec 2019 19:11:00 -0000 [thread overview]
Message-ID: <CAPTJ0XFXu4ndNUPuKqYox-ryeQJUfRJ8UkM21-m082aqCf7W7Q@mail.gmail.com> (raw)
In-Reply-To: <87r210b2o0.fsf@tromey.com>
On Thu, Dec 19, 2019 at 12:17 PM Tom Tromey <tom@tromey.com> wrote:
>
> >>>>> "Eli" == Eli Zaretskii <eliz@gnu.org> writes:
>
> >> Date: Wed, 18 Dec 2019 18:01:02 -0600
> >> From: "Christian Biesinger via gdb-patches" <gdb-patches@sourceware.org>
> >> Cc: Christian Biesinger <cbiesinger@google.com>
> >>
> >> On Solaris 11 with gcc 5.5.0 (gcc211 on the compile farm), math.h has a
> >> using std::log10; directive. This is unfortunate because std::log10 has
> >> overloads for float/double/long double. To disambiguate this call,
> >> cast the argument to double to fix the build.
>
> Eli> We may wish to have a comment in the code referring to the original
> Eli> problem, including perhaps the OS and the compiler versions?
> Eli> Otherwise the need for this cast is not immediately obvious, IMO.
>
> Agreed; this is ok with that change.
OK, will push with this comment:
/* Solaris 11+gcc 5.5 has ambiguous overloads of log10, so we
cast to double to get the right one. */
Christian
next prev parent reply other threads:[~2019-12-19 19:11 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-19 0:01 [PATCH 0/3] Fix Solaris build with enable-targets=all Christian Biesinger via gdb-patches
2019-12-19 0:01 ` [PATCH 1/3] Undef REG_Y in s12z.h, it may be defined in a system header Christian Biesinger via gdb-patches
2019-12-19 18:18 ` Tom Tromey
2019-12-19 0:01 ` [PATCH] Rename "sun" variable to avoid conflicts on Solaris Christian Biesinger via gdb-patches
2019-12-19 0:01 ` [PATCH 2/3] Cast the log10 argument to double to disambiguate it Christian Biesinger via gdb-patches
2019-12-19 3:35 ` Eli Zaretskii
2019-12-19 18:17 ` Tom Tromey
2019-12-19 19:11 ` Christian Biesinger via gdb-patches [this message]
2019-12-19 0:01 ` [PATCH 3/3] Make the literal argument to pow a double, not an integer Christian Biesinger via gdb-patches
2019-12-19 18:19 ` Tom Tromey
2019-12-19 19:13 ` Christian Biesinger via gdb-patches
2019-12-19 19:14 ` [PATCH 0/3] Fix Solaris build with enable-targets=all Christian Biesinger via gdb-patches
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CAPTJ0XFXu4ndNUPuKqYox-ryeQJUfRJ8UkM21-m082aqCf7W7Q@mail.gmail.com \
--to=gdb-patches@sourceware.org \
--cc=cbiesinger@google.com \
--cc=eliz@gnu.org \
--cc=tom@tromey.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox