Tomasz Sowa
978815f12d
fixed: Big::Add incorrectly rounded 'this' when both exponents were equal
it caused that sometimes when adding a zero the result has changed
this had impact among other things on FromString() method
"0,8" had different binary representation from "0,80"
changed: renamed: Big::PowUInt(UInt<pow_size> pow) -> Big::Pow(UInt<pow_size> pow)
it returns 2 when there is: 0^0
changed: renamed: Big::PowInt(Int<pow_size> pow) -> Big::Pow(Int<pow_size> pow)
it returns 2 when there is: 0^0 or 0^(-something)
changed: renamed: Big::PowBUInt() -> PowUInt(), Big::PowBInt() -> Big::PowInt()
they return 2 when the arguments are incorrect (like above)
changed: UInt::SetBitInWord(uint & value, uint bit) is taking the first argument by a reference now,
the specific bit is set in the 'value' and the method returns the last state of the bit (zero or one)
added: UInt::GetBit(uint bit_index) - returning the state of the specific bit
changed: UInt::SetBit(uint bit_index) - it's using TTMATH_ASSERT now
changed: Big::Mod2() - it's using mantissa.GetBit() now
added: Big::operator=(double) and Big::Big(double)
added: TTMATH_ASSERT somewhere in ttmathuint64.h
added: UInt::Pow(UInt<value_size> pow) and Int::Pow(Int<value_size> pow)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@104 e52654a7-88a9-db11-a3e9-0013d4bc506e
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README
TTMath - 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. 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. 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. Author: Tomasz Sowa <t.sowa@slimaczek.pl> Project pages: http://ttmath.slimaczek.pl http://sourceforge.net/projects/ttmath