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authorMike Kaganski <mike.kaganski@collabora.com>2020-02-23 19:19:10 +0300
committerMike Kaganski <mike.kaganski@collabora.com>2020-02-27 11:02:03 +0100
commitf3e7004794eded346d98264d3061f4e4aa80ee0a (patch)
tree80a79880c0615114d05dd2a4025ada2684b01812 /readlicense_oo
parentb623684c666ccf07b59a76fe58e10f34afbb41a4 (diff)
tdf#130725: use strtod by David M. Gay to make sure we get the nearest
... representation of given decimal. Use dtoa.c from https://www.netlib.org/fp/dtoa.c to build a custom static library that doesn't use current locale (unlike strtod from stdlib.h). This is the implementation used by e.g. python and nss (search for "dtoa.c" under UnpackedTarball). To avoid name clash with the standard strtod, rename the function to strtod_nolocale. Size of buffer on stack in ImpSvNumberInputScan::StringToDouble is 256 characters. Logging function usage in make check, of ~124 600 invocations, the longest string was 14 characters, average being 2.1 characters. So heap allocation is unlikely in scenarios with intensive function usage. After std::from_chars is available in baseline compilers, external library can be dropped, and call to strtod_nolocale replaced with the standard function. The artifact at https://dev-www.libreoffice.org/src/dtoa-20180411.tgz is created with mkdir dtoa && mkdir dtoa/src && wget https://www.netlib.org/fp/dtoa.c -O dtoa/src/dtoa.c && \ printf 'd8bab255476f39ea495c8c8ed164f9077da926e6ca7afb9ad3c56d337c4484fe dtoa/src/dtoa.c' | sha256sum -c && \ tar -c --owner=0 --group=0 --mode=go=r,u=rw --mtime='Wed, 11 Apr 2018 15:59:39 GMT' dtoa/src/dtoa.c | gzip -n > dtoa-20180411.tgz && \ printf '0082d0684f7db6f62361b76c4b7faba19e0c7ce5cb8e36c4b65fea8281e711b4 dtoa-20180411.tgz' | sha256sum -c (where the date "Wed, 11 Apr 2018 15:59:39 GMT" is from `wget -S https://www.netlib.org/fp/dtoa.c` "Last-Modified: Wed, 11 Apr 2018 15:59:39 GMT" header). Change-Id: Ia61b7678e257c4bc1ff193f3f856d611aa5c1a21 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/88854 Tested-by: Jenkins Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
Diffstat (limited to 'readlicense_oo')
-rw-r--r--readlicense_oo/license/license.xml19
1 files changed, 19 insertions, 0 deletions
diff --git a/readlicense_oo/license/license.xml b/readlicense_oo/license/license.xml
index 0d4c93d7e9cd..d032d410be98 100644
--- a/readlicense_oo/license/license.xml
+++ b/readlicense_oo/license/license.xml
@@ -1849,6 +1849,25 @@
Software.</p>
</blockquote>
</div>
+ <h2>dtoa</h2>
+ <p>The following software may be included in this product: dtoa.</p>
+ <p>dtoa code is covered by the MIT license:</p>
+ <blockquote>
+ <p> The author of this software is David M. Gay.</p>
+
+ <p> Copyright (c) 1991, 2000, 2001 by Lucent Technologies.</p>
+
+ <p>Permission to use, copy, modify, and distribute this software for any
+ purpose without fee is hereby granted, provided that this entire notice
+ is included in all copies of any software which is or includes a copy
+ or modification of this software and in all copies of the supporting
+ documentation for such software.</p>
+
+ <p>THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
+ WARRANTY. IN PARTICULAR, NEITHER THE AUTHOR NOR LUCENT MAKES ANY
+ REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
+ OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.</p>
+ </blockquote>
<h2>Random123: a Library of Counter-Based Random Number Generators</h2>
<p>The following software may be included in this product: Random123: a Library of Counter-Based Random Number
Generators. Use of any of this software is governed by the terms of the license below:</p>