those characters were skipped
(this bug was introduced in 0.9.0)
added: to Big::ToString() - additional rounding when conv.base_round is used
if the value is not an integer we calculate how many valid digits there are
after the comma operator (in conv.base radix) and then we skipped the rest
digits, after skipping the base-rounding is made
this helps to print values which have some last clear bits in the mantissa
consider this 32 bit value:
(binary)0.00011100001010001111010111000000000
which has mantissa equal: (binary)11100001010001111010111000000000 (32 bits)
previous the ToString() method gave: (decimal)0.10999999[...]
now we have: (decimal)0.11
added: Parser::SetSmallToZero(bool zero) (default true)
if true then the parser changes small values into zero
small value means:
- if the mantissa of the value consists only of one, two or three set bits
- and these bits are next to each other
- and the exponent is smaller than about 2 times the number of bits from the mantissa
this helps to correctly calculate expressions such as: "0.80-3*0.34+0.22"
now the parser gives zero (previous there was a value very closed to zero)
added: UInt::FindLowestBit(uint & table_id, uint & index)
/temporary version - asm version is missing /
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@256 e52654a7-88a9-db11-a3e9-0013d4bc506e
const char * Big::LibTypeStr()
LibTypeCode UInt::LibType()
LibTypeCode Big::LibType()
returning a string/enum represents the currect type of the library
we have following types:
asm_vc_32 - with asm code designed for Microsoft Visual C++ (32 bits)
asm_gcc_32 - with asm code designed for GCC (32 bits)
asm_vc_64 - with asm for VC (64 bit)
asm_gcc_64 - with asm for GCC (64 bit)
no_asm_32 - pure C++ version (32 bit) - without any asm code
no_asm_64 - pure C++ version (64 bit) - without any asm code
changed: another compilers than MS VC or GCC by default use no asm version (TTMATH_NOASM)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@247 e52654a7-88a9-db11-a3e9-0013d4bc506e
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
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@213 e52654a7-88a9-db11-a3e9-0013d4bc506e
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
added: macros:
TTMATH_LOGC(msg, carry)
TTMATH_VECTOR_LOG(msg, vector, len)
TTMATH_VECTOR_LOGC(msg, carry, vector, len)
added: UInt::PrintVectorLog() for debugging purposes
changed: UInt<> class uses new log macros
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@203 e52654a7-88a9-db11-a3e9-0013d4bc506e
(asm for x86_64 on MS VC)
changed: removed some MS VC warnings
changed: if TTMATH_DEBUG_LOG is defined then UInt::UInt()
constructor fills the table with special values
added: macro: TTMATH_BITS(min_bits)
which returns the number of machine words
capable to hold min_bits bits
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@201 e52654a7-88a9-db11-a3e9-0013d4bc506e
some warnings were raported by GCC
(uninitialized variable)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@200 e52654a7-88a9-db11-a3e9-0013d4bc506e
didn't want to compile
moved: UInt<>::SkipWhiteCharacters() to Misc::SkipWhiteCharacters()
UInt<>::CharToDigit() to Misc::CharToDigit()
UInt<>::DigitToChar() to Misc::DigitToChar()
removed: Parser::CharToDigit() - was duplicated (it's the same as Misc::CharToDigit())
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@198 e52654a7-88a9-db11-a3e9-0013d4bc506e
added: wide characters can be used simultaneously with ascii characters
now we have two kind of methods: one for ascii characters and the other for wide characters
e.g.
void UInt::ToString(std::string & result)
void UInt::ToString(std::wstring & result)
previous was only one:
void UInt::ToString(tt_string & result)
and the 'tt_string' was a typedef to either std::string or std::wstring
and it was a little misleading to a user (he has to know what the tt_string is)
added: file: ttmathmisc.h some useful functions
changed: classes: ExceptionInfo, ReferenceError and RuntimeError are used only with ascii characters
removed: macros: TTMATH_USE_WCHAR, TTMATH_TEXT()
removed: typedefs: tt_char, tt_string, tt_ostringstream, tt_ostream, tt_istream
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@193 e52654a7-88a9-db11-a3e9-0013d4bc506e
uint __fastcall ttmath_subvector_x64(const uint * ss1, const uint * ss2, uint ss1_size, uint ss2_size, uint * result);
asm code for AddVector() and SubVector() for MS VC x86_64
changed: added prefixes "ttmath_" to all public procedures from ttmathuint_x86_64_msvc.asm
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@192 e52654a7-88a9-db11-a3e9-0013d4bc506e
file: ttmathuint_x86_64_msvc.asm from chk branch (original was: ttmathuint_x86_amd64_msvc.asm)
(this file should be compiled first because MS VC doesn't support inline assembler in x86_64 mode)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@187 e52654a7-88a9-db11-a3e9-0013d4bc506e
wide characters are used when macro TTMATH_USE_WCHAR is defined
this macro is defined automatically when there is macro UNICODE or _UNICODE defined
some types have been changed
char -> tt_char
std::string -> tt_string
std::ostringstream -> tt_ostringstream
std::ostream -> tt_ostream
std::istream -> tt_istream
normally tt_char is equal char but when you are using wide characters then tt_char will be wchar_t (and so on)
(all typedef's are in ttmathtypes.h)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@177 e52654a7-88a9-db11-a3e9-0013d4bc506e
changed: some cosmetic changes to get rid of warnings generated by
MS Visual 2008 when warning level is 4
changed: names of labels in asm code: p to ttmath_loop, end to ttmath_end
p2 to ttmath_loop2
Robert Muir reported that there was a confict with boost::end
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@156 e52654a7-88a9-db11-a3e9-0013d4bc506e
void UInt::Mul3Big(const UInt<value_size> & ss2, UInt<value_size*2> & result)
a new multiplication algorithm: Karatsuba multiplication,
on a vector UInt<100> with all items different from zero this algorithm is faster
about 3 times than Mul2Big(), and on a vector UInt<1000> with all items different from
zero this algorithm is faster more than 5 times than Mul2Big()
(measured on 32bit platform with GCC 4.3.3 with -O3 and -DTTMATH_RELEASE)
added: uint MulFastest(const UInt<value_size> & ss2)
void MulFastestBig(const UInt<value_size> & ss2, UInt<value_size*2> & result)
those methods are trying to select the fastest multiplication algorithm
changed: uint Mul(const UInt<value_size> & ss2, uint algorithm = 100)
void MulBig(const UInt<value_size> & ss2, UInt<value_size*2> & result, uint algorithm = 100)
those methods by default use MulFastest() and MulFastestBig()
changed: changed a little Mul2Big() to cooperate with Mul3Big()
changed: names of methods in macros TTMATH_LOG()
added: uint AddVector(const uint * ss1, const uint * ss2, uint ss1_size, uint ss2_size, uint * result)
uint SubVector(const uint * ss1, const uint * ss2, uint ss1_size, uint ss2_size, uint * result)
three forms: asm x86, asm x86_64, no-asm
those methods are used by the Karatsuba multiplication algorithm
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@148 e52654a7-88a9-db11-a3e9-0013d4bc506e
changed: UInt::SubInt() in no-asm code is a little faster now
changed: small cosmetic changes in commentaries
deleted: some debug #ifdef's from UInt::Div() (in no-asm code)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@136 e52654a7-88a9-db11-a3e9-0013d4bc506e
sometimes when using -O2 or -O3 GCC doesn't set correctly
the stack pointer (actually the stack is used for other things)
and you can't use instructions like push/pop in assembler code.
All the asm code in x86_64 have been rewritten, now instructions
push/pop are not used, other thing which have access to stack
(like "m" (mask) constraints in Rcl2 and Rcr2) have also gone away,
now the library works well with -O2 and -O3 and the asm code
is a little faster
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@127 e52654a7-88a9-db11-a3e9-0013d4bc506e
all the methods which are using assembler code have been
rewritten to no-asm forms, now we have:
1. asm for x86 file: ttmathuint_x86.h
2. asm for x86_64 file: ttmathuint_x86_64.h
3. no asm file: ttmathuint_noasm.h
(it's used when macro TTMATH_NOASM is defined)
The third form can be used on x86 and x86_64 as well and
on other platforms with a little effort.
(Temporarily I left there some '#ifdef's for debugging.)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@126 e52654a7-88a9-db11-a3e9-0013d4bc506e
used for debugging purposes by macro TTMATH_LOG(msg)
(it is used in nearly all methods in UInt class)
added: macro TTMATH_DEBUG_LOG: when defined then TTMATH_LOG()
put some debug information (to std::cout)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@125 e52654a7-88a9-db11-a3e9-0013d4bc506e
(radix) -- operators '#' and '&', e.g.:
'#sin(1)' was equal '0' -- there was a zero from '#' and then
it was multipied by 'sin(1)'
the parser didn't check whether Big::FromString() has actually
read a proper value -- the method Big::FromString() didn't have
something to report such a situation
fixed: Big::FromString() when the base is 10, the method reads the scientific
part only if such a part it correctly supplied, e.g:
'1234e10', '1234e+10', '1234e-5'
previous '1234e' was treated as: '1234e0' (now parsing stops on 'e' and
the 'e' can be parsed by other parsers, e.g. the mathematical
parser -- now in the parser would be: '1234e' = '1234 * e' = '3354,3597...' )
added: to Int::FromString(): parameter 'const char ** after_source = 0'
if exists it's pointing at the end of the parsed string
added: to UInt::FromString(), Int::FromString(), Big::FromString():
parameter 'bool * value_read = 0' - (if exists) tells
whether something has actually been read (at least one digit)
added: the parser checks itself for the operators for changing the base
(operators '#' and '&')
changed: in the parser: the form with operators '#' and '&' is as follows:
[-|+][#|&]numeric_value
previous was: [-|+][#|&][-|+]numeric_value
removed: Big::FromString() this method doesn't longer recognize operators
for changing the base ('#' and '&')
changed: in the parser: the short form of multiplication has the same
priority as the normal multiplication, e.g.:
'2x^3' = 2 * (x^3)
previous the priority was greater than powering priority
previous: '2x^3' = (2*x) ^ 3
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@113 e52654a7-88a9-db11-a3e9-0013d4bc506e
changed: the size of built-in variables (constants) in ttmathbig.h
now they consist of 256 32bit words
macro TTMATH_BUILTIN_VARIABLES_SIZE is equal: 256u on a 32bit platform and 128ul on a 64bit platform
added: macro CONSTANTSGENERATOR which is useful for generating constants
(it's used by 'gen' program in 'constgen' directory)
after declaring this macro the methods: ExpSurrounding0() and LnSurrounding1() will be public visible
and the inner loop can do more iterations than TTMATH_ARITHMETIC_MAX_LOOP
changed: in methods: ExpSurrounding0() and LnSurrounding1() - the way of comparising with the last word
(now we're comparing not with the last state but with a state from a few words back)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@105 e52654a7-88a9-db11-a3e9-0013d4bc506e
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
UInt::FindLeadingBitInWord, UInt::SetBitInWord
fixed: UInt::Div() didn't return a correct result when the divisor was equal 1
there was an error in UInt::DivInt() - when the divisor was 1 it returned
zero and the carry was set
this error was from the beginning of the TTMath library
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@103 e52654a7-88a9-db11-a3e9-0013d4bc506e
fixed: UInt::FindLeadingBitInWord(x) didn't correctly return result -1 when the x was 0
the mistake made by Thomas Braby, it was not in the 0.8.2 release
changed: tests: we do not test for lahf/sahf instructions now (in 64bit code)
we don't use these instructions
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@97 e52654a7-88a9-db11-a3e9-0013d4bc506e
the proper carry, (when 'bits' was greater than or equal to 'value_size')
this had impact on Rcl() and Rcr(), they also returned the wrong carry
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@85 e52654a7-88a9-db11-a3e9-0013d4bc506e
they are much faster than UInt::Rcl2(1,c) and Rcr2(1,c)
changed: UInt::Rcl() and UInt::Rcr()
we don't longer make the things with moving a half in the left and a half in the right
we simply use Rcl2_one() and Rcl2() /Rcr2_one() and Rcr2()/
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@84 e52654a7-88a9-db11-a3e9-0013d4bc506e
(much faster now)
changed: asm code in: UInt::Rcl2, UInt::Rcr2 (32 and 64bit)
previous versions of Rcl2 and Rcr2 had O(n2) complexity,
now they have O(n) and are much faster
changed: now we do not use LAHF and SAHF instructions (both in 32 and 64 bit code)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@83 e52654a7-88a9-db11-a3e9-0013d4bc506e
32 and 64 bits, much faster now
added: tests for UInt::AddInt
fixed: tests: test_lahf() returned incorrect value for 32bit platform
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@82 e52654a7-88a9-db11-a3e9-0013d4bc506e
there were used 'lahf' and 'sahf' instructions
probably they are supported in a new version of GCC
with '-msahf' option but GCC 4.2.1 has no such option
at the moment I'm using opcodes:
lahf -> 9f
sahf -> 9e
Warning! these instructions are not on all 64bit processors
from: http://gcc.gnu.org/onlinedocs/gcc/i386-and-x86_002d64-Options.html
"Early Intel CPUs with Intel 64 lacked LAHF and SAHF instructions supported
by AMD64 until introduction of Pentium 4 G1 step in December 2005."
changed: UInt::Add on 64bit platform
changed: UInt::Add on 32bit platform (a little)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@80 e52654a7-88a9-db11-a3e9-0013d4bc506e
which is pointing at the end of the parsing string
added: initial import of tests: testing UInt::Add method
(not finished)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@79 e52654a7-88a9-db11-a3e9-0013d4bc506e
changed: UInt::Rcl(uint c=0) and UInt::Rcr(uint c=0) into
UInt::Rcl2(uint bits, uint c) and UInt::Rcr2(uint bits, uint c)
now they can move more than one bit and they are only private
fixed: UInt::Rcl(uint bits, uint c) and UInt::Rcr(uint bits, uint c)
didn't correctly return a carry if the 'bits' were equal
to 'value_size*TTMATH_BITS_PER_UINT'
changed: UInt::Rcl(uint bits, uint c) and UInt::Rcr(uint bits, uint c)
into UInt::Rcl(uint bits, uint c=0) and
UInt::Rcr(uint bits, uint c=0)
they are faster now when the bits is greater than a half of
the TTMATH_BITS_PER_UINT
changed: UInt::CompensationToLeft() it's faster now
changed: more small changes where there were UInt::Rcl(uint c=0) and
UInt::Rcr(uint c=0) used
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@34 e52654a7-88a9-db11-a3e9-0013d4bc506e
added: Big::MulUInt(uint)
changed: Big::MulInt(sint)
added: Big::ToUInt(uint &)
changed: Big::ToInt(sint&)
changed: Factorial() it uses Big::MulUInt() at the beginning
(faster now especially more on a 32bit platform)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@33 e52654a7-88a9-db11-a3e9-0013d4bc506e
RadToDeg(rad), Ceil(x), Floor(x), Sqrt(x), Sinh(x), Cosh(x),
Tanh(x) /Tgh(x)/, Coth(x) /Ctgh(x)/
changed: class Objects in ttmathobjects.h has been completely rewritten, we can
change the names of user-defined variables or functions, and the names are
case-sensitive now
added: class History which is used in functions which take a lot of time
during calculating e.g. Factorial(x)
added: Tg(x) a wrapper for Tan(x)
changed: CTan(x) is Cot(x) now
added: Ctg(x) a wrapper for Cot(x)
added: ATg(x) a wrapper for ATan(x)
changed: ACTan(x) is ACot(x) now
added: ACtg(x) a wrapper for ACot(x)
added: UInt::PrintTable() (for debugging etc.)
changed: the methods Big::SetPi() Big::SetE() and Big::SetLn2() have been
rewritten, now they have 128 32bit words (it's about 1232 valid
decimal digits)
fixed: previous values from Big::SetPi() Big::SetE() and Big::SetLn2() were
not too much accurate (last 2-3 words were wrong)
added: Big::SetLn10() (128 32bit words as well)
added: macro: TTMATH_BUILTIN_VARIABLES_SIZE which is equal 128u on 32bit
platforms and 64ul on 64bit platforms (128/2=64)
added: macros: TTMATH_PLATFORM32 and TTMATH_PLATFORM64
changed: a small optimisation in UInt::Mul2Big()
added: at the end of ttmath.h: #include "ttmathparser.h"
this is for convenience for a programmer, he can only use #include
with ttmath.h even if he uses the parser
added: to samples: big.cpp, parser.cpp
fixed: constructor Big::Big(uint) - it was wrong because
it was using the method Big::FromInt(sint) which could produce wrong
values (if the 'uint' couldn't correctly be casted into the 'sint')
added: Big::FromUInt(uint)
changed: Big::FromInt(sint), Big::SetOne(), renamed Big::SetDotOne() into
Big::Set05()
(they are a little faster now)
added: Big::operator=(uint)
changed: in 64bit mode: constructor: Big::Big(int)
added: in 64bit mode: constructor: Big::Big(unsigned int),
operators: Big::operator=(signed int) and Big::operator=(unsigned int)
(these operators and the constructor take a 32bit value)
deleted: the word 'virtual' from destructors: UInt, Int, Big
(types in this library are not projected to be base-classes for
another ones derived from them)
changed: UInt::operator=(uint), UInt::UInt(uint), Int::operator=(sint), Int::Int(sint)
added: UInt::FromUInt(uint), UInt::operator=(sint), UInt::UInt(sint),
Int::FromInt(sint), Int::operator=(uint), Int::Int(uint),
Int::operator==(const Int<>&), Int::operator!=(const Int<>&)
added: in 64bit mode: UInt::operator=(unsigned int), UInt::UInt(unsigned int),
UInt::operator=(signed int), UInt::UInt(signed int)
(these operators and the constructors take a 32bit value)
added: in 64bit mode: Int::operator=(signed int), Int::Int(signed int),
Int::operator=(unsigned int), Int::Int(unsigned int)
(these operators and the constructors take a 32bit value)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@25 e52654a7-88a9-db11-a3e9-0013d4bc506e
fixed: bad sizes in tables in some 'Set...' methods in the Big class
fixed: Big::FromInt(Int<int_size> value) - the sign must be set at the end because SetSign
checks whether there is zero and depends on it sets the sign or not
(this was the stupid error which causes sometimes the errors 'overflow during printing')
fixed: Big::SetMin - the sign must be set at the and
changed: Big::Pow can use the reference now (the problem was actually with the Big::FromInt)
added: a namespace 'auxiliaryfunctions' (in ttmath.h)
added: ATan - arc tan, ACTan - arc ctan
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@17 e52654a7-88a9-db11-a3e9-0013d4bc506e
added: UInt::SetFromTable for 64bit code (now the support for 64bit
platforms seems to be completed)
added: asin - arc sin, acos - arc cos
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@16 e52654a7-88a9-db11-a3e9-0013d4bc506e
changed Int::Div -- a remainder is not returning now but taking as a parameter (a pointer or reference)
changed order in parameters in UInt::AddTwoInts
added Int::AddInt
added Int::AddTwoInts
added Int::SubInt
changed Int::AddOne and Int::SubOne (much faster now)
fixed a bug in UInt::operator--() and Int::operator--() (there was adding instead of subtracting)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@13 e52654a7-88a9-db11-a3e9-0013d4bc506e
added UInt::AddInt and UInt::SubInt
changed UInt::AddOne and UInt::SubOne (much faster now)
added UInt::SetBitInWord
changed UInt::SetBit (much faster now)
UInt::AddTwoUints renamed to UInt::AddTwoInts
UInt::FindLeadingBit32 renamed to UInt::FindLeadingBitInWord
added UInt::SetBitInWord
UInt::Mul64 renamed to UInt::MulTwoWords
UInt::Div64 renamed to UInt::DivTwoWords
and more small changes in UInt type
start adding support for Amd64 (not finished yet) (added ttmathuint64.h)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@12 e52654a7-88a9-db11-a3e9-0013d4bc506e
changed kind of templates in ttmath.h (template<class ValueType> is now)
added TTMATH_RELEASE macro
added TTMATH_ prefix into macros
changed multiplication in UInt type (now we can use both algorithm in the same time)
added ExceptionInfo, ReferenceError and RuntimeError classes
now TTMATH_ASSERT throws another type of object
added TTMATH_REFERENCE_ASSERT (it is instead of MATHTT_THIS_ASSERT)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@3 e52654a7-88a9-db11-a3e9-0013d4bc506e
Tomasz Sowa