public inbox for libstdc++-cvs@sourceware.org
help / color / mirror / Atom feed
From: Jonathan Wakely <redi@gcc.gnu.org>
To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org
Subject: [gcc r12-7606] libstdc++: Do not use fast_float for 16-bit size_t [PR104870]
Date: Thu, 10 Mar 2022 23:45:31 +0000 (GMT)	[thread overview]
Message-ID: <20220310234531.8B69F3858C20@sourceware.org> (raw)

https://gcc.gnu.org/g:a8db9b90439f33af9ef602325df1f1e967fc549a

commit r12-7606-ga8db9b90439f33af9ef602325df1f1e967fc549a
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Thu Mar 10 21:13:20 2022 +0000

    libstdc++: Do not use fast_float for 16-bit size_t [PR104870]
    
    The preprocessor condition for using fast_float should match the one in
    the header, and require at least 32-bit size_t.
    
    libstdc++-v3/ChangeLog:
    
            PR libstdc++/104870
            * src/c++17/floating_from_chars.cc: Check __SIZE_WIDTH__ >= 32
            before using fast_float.

Diff:
---
 libstdc++-v3/src/c++17/floating_from_chars.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libstdc++-v3/src/c++17/floating_from_chars.cc b/libstdc++-v3/src/c++17/floating_from_chars.cc
index ba1345db3f2..ba0426b3344 100644
--- a/libstdc++-v3/src/c++17/floating_from_chars.cc
+++ b/libstdc++-v3/src/c++17/floating_from_chars.cc
@@ -61,7 +61,8 @@
 extern "C" __ieee128 __strtoieee128(const char*, char**);
 #endif
 
-#if _GLIBCXX_FLOAT_IS_IEEE_BINARY32 && _GLIBCXX_DOUBLE_IS_IEEE_BINARY64
+#if _GLIBCXX_FLOAT_IS_IEEE_BINARY32 && _GLIBCXX_DOUBLE_IS_IEEE_BINARY64 \
+    && __SIZE_WIDTH__ >= 32
 # define USE_LIB_FAST_FLOAT 1
 # if __LDBL_MANT_DIG__ == __DBL_MANT_DIG__
 #  undef USE_STRTOD_FOR_FROM_CHARS


                 reply	other threads:[~2022-03-10 23:45 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

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=20220310234531.8B69F3858C20@sourceware.org \
    --to=redi@gcc.gnu.org \
    --cc=gcc-cvs@gcc.gnu.org \
    --cc=libstdc++-cvs@gcc.gnu.org \
    /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;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).