mirror of
https://review.haiku-os.org/buildtools
synced 2025-01-19 12:51:22 +01:00
99d8158635
git-svn-id: file:///srv/svn/repos/haiku/buildtools/trunk@29042 a95241bf-73f2-0310-859d-f6bbb57e9c96
62 lines
2.4 KiB
Plaintext
62 lines
2.4 KiB
Plaintext
Copyright 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
|
|
Contributed by the Spaces project, INRIA Lorraine.
|
|
|
|
This file is part of the MPFR Library.
|
|
|
|
The MPFR Library is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 of the License, or (at your
|
|
option) any later version.
|
|
|
|
The MPFR Library is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
|
|
License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with the MPFR Library; see the file COPYING.LIB. If not, write to
|
|
the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
|
|
MA 02110-1301, USA.
|
|
|
|
##############################################################################
|
|
|
|
Probably many bugs.
|
|
|
|
Known bugs:
|
|
|
|
* The overflow/underflow exceptions may be badly handled in some functions;
|
|
specially when the intermediary internal results have exponent which
|
|
exceeds the hardware limit (2^30 for a 32 bits CPU, and 2^62 for a 64 bits
|
|
CPU).
|
|
|
|
* Under Linux/x86 with the traditional FPU, some functions do not work
|
|
if the FPU rounding precision has been changed to single (this is a
|
|
bad practice and should be useless, but one never knows what other
|
|
software will do).
|
|
|
|
* Some functions do not use MPFR_SAVE_EXPO_* macros, thus do not behave
|
|
correctly in a reduced exponent range.
|
|
|
|
Potential bugs:
|
|
|
|
* Possible integer overflows on some machines.
|
|
|
|
* Possible bugs with huge precisions (> 2^30).
|
|
|
|
* Possible bugs if the chosen exponent range does not allow to represent
|
|
the range [1/16, 16].
|
|
|
|
* Possible infinite loop in some functions for particular cases: when
|
|
the exact result is an exactly representable number or the middle of
|
|
consecutive two such numbers. However for non-algebraic functions, it is
|
|
believed that no such case exists, except the well-known cases like cos(0)=1,
|
|
exp(0)=1, and so on, and the x^y function when y is an integer or y=1/2^k.
|
|
|
|
* The mpfr_set_ld function may be quite slow if the long double type has an
|
|
exponent of more than 15 bits.
|
|
|
|
* mpfr_set_d may give wrong results on some non-IEEE architectures.
|
|
|
|
* Error analysis for some functions may be incorrect (out-of-date due
|
|
to modifications in the code?).
|