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updated: CHANGELOG and README

git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@224 e52654a7-88a9-db11-a3e9-0013d4bc506e
master
Tomasz Sowa 12 years ago
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413c83de45
  1. 38
      CHANGELOG
  2. 35
      README

38
CHANGELOG

@ -1,20 +1,4 @@
Version 0.9.0 prerelease (2009.10.18):
* fixed: Big::operator>>(std::istream&, Big<> &) didn't recognize values
in scientific mode (with 'e' character)
* fixed: UInt::SetBitInWord(uint & value, uint bit) set 1 if the bit was
equal 1 (should be set 2)
this affected only no-asm parts - when macro TTMATH_NOASM was defined
* fixed: UInt<value_size>::MulInt(uint ss2)
there was a buffer overflow when value_size was equal 1
* fixed: UInt::AddVector() and UInt::SubVector() didn't want to compile
when macro TTMATH_NOASM was defined
* fixed: buffer overflow in Big::ToInt(Int<int_size> & result)
* fixed: powering algorithm in:
UInt::Pow(UInt<value_size> pow)
Big::Pow(UInt<pow_size> pow)
Big::PowUInt(Big<exp, man> pow)
when 'pow' was sufficient large the algorithm returned carry
but the result could have been calculated correctly
Version 0.9.0 prerelease (2009.10.25):
* added: support for wide characters (wchar_t, std::wstring)
* added: Big::IsInteger()
returns true if the value is integer (without fraction)
@ -54,6 +38,26 @@ Version 0.9.0 prerelease (2009.10.18):
* removed: ErrorCode::err_too_big_factorial
Version 0.8.6 (2009.10.25):
* fixed: UInt::SetBitInWord(uint & value, uint bit) set 1 if the bit was
equal 1 (should be set 2)
this affected only no-asm parts - when macro TTMATH_NOASM was defined
* fixed: UInt<value_size>::MulInt(uint ss2)
there was a buffer overflow when value_size was equal 1
* fixed: UInt::AddVector() and UInt::SubVector() didn't want to compile
when macro TTMATH_NOASM was defined
* fixed: Big::operator>> didn't correctly recognize values in scientific mode (with 'e' character)
* fixed: Int::FromString(const tt_string & s, uint b = 10)
didn't use 'b' (always was '10')
* fixed: buffer overflow in Big::ToInt(Int<int_size> & result)
* fixed: powering algorithm in:
UInt::Pow(UInt<value_size> pow)
Big::Pow(UInt<pow_size> pow)
Big::PowUInt(Big<exp, man> pow)
when 'pow' was sufficient large the algorithm returned carry
but the result could have been calculated correctly
Version 0.8.5 (2009.06.16):
* fixed: Big::Mod(x) didn't correctly return a carry
and the result was sometimes very big (even greater than x)

35
README

@ -1,26 +1,23 @@
TTMath - a bignum library for C++
A bignum library for C++
TTMath is a small library which allows one to perform arithmetic operations
with big unsigned integer, big signed integer and big floating point
numbers. It provides standard mathematical operations like adding,
subtracting, multiplying, dividing etc. With the library also goes
a mathematical parser which helps you solving input formulas read directly
from a user.
with big unsigned integer, big signed integer and big floating point numbers.
It provides standard mathematical operations like adding, subtracting,
multiplying, dividing. With the library also goes a mathematical parser to
help you solving mathematical expressions.
TTMath is developed under the BSD licence which means that it is free
for both personal and commercial use.
The library has some technical limitations:
* there are only two platforms that are supported: x86 and x86_64,
* you can use this library only with the C++ programming language.
TTMath is developed under the BSD licence which means that it is free for
both personal and commercial use.
The main goal of the library is to allow one to use big values in the same
way as the standard types like int, float, etc. It does not need to be
compiled first because the whole library is written as the C++ templates.
This means only C++ developers can use this library and one thing they have
to do is to use 'include' directive of the preprocessor. How big the
values can be is set directly in the source code by the programmer.
way as the standard types like int or float. It does not need to be compiled
first because the whole library is written as the C++ templates. This means
only C++ developers can use this library and one thing they have to do is
to use 'include' directive of the preprocessor. How big the values can be
is set at compile time.
Author: Tomasz Sowa <t.sowa@ttmath.org>
Project pages: http://www.ttmath.org
http://sourceforge.net/projects/ttmath
WWW: http://www.ttmath.org
Contributors:
Christian Kaiser <chk@online.de>

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