updated: CHANGELOG and README
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CHANGELOG
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CHANGELOG

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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 noasm 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 noasm 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
35
README

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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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