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
changed: small optimization in ToInt(Int<int_size> & result)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@210 e52654a7-88a9-db11-a3e9-0013d4bc506e
this method returns true is something was calculated
(at least one mathematical operator was used or a function or variable)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@207 e52654a7-88a9-db11-a3e9-0013d4bc506e
it was broken (it lacks the case when either 'this' or 'ss2' is zero)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@206 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
if this flag is set then there is a value zero
added: Big::ClearInfoBit(unsigned char)
Big::SetInfoBit(unsigned char)
Big::IsInfoBit(unsigned char)
some methods for manipulating the info flags
changed: IsZero() is using TTMATH_BIG_ZERO flag
now it has O(1) complexity
previously was O(n)
changed: optimized some methods
they are using IsZero() for testing at the beginning
because this method is much faster now
changed: Big::Div(ss2)
Big::Mod(ss2)
they return 2 when ss2 is zero
previously returned 1
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@190 e52654a7-88a9-db11-a3e9-0013d4bc506e
(there was used ttmath::Abs() function which is unknown in Big<> class)
AboutEqual() returned true for: "2345.5" and "-2345.5" (the sign was not checked)
renamed: Big::AboutEqual() to Big::AboutEqualWithoutSign()
added: Big::AboutEqual()
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@189 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
deleted: properties svn:mime-type from ttmath.h
(it was for testing viewvc)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@186 e52654a7-88a9-db11-a3e9-0013d4bc506e
in single thread environment
the previous version of the method didn't store
the calculated logarithms
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@184 e52654a7-88a9-db11-a3e9-0013d4bc506e
you should compile with TTMATH_MULTITHREADS
and use TTMATH_MULTITHREADS_HELPER macro somewhere in your *.cpp file
added file: ttmaththreads.h (look there for more info)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@183 e52654a7-88a9-db11-a3e9-0013d4bc506e
* added: gamma() function to the parser
* added: Big::IsInteger() method
returns true if the value is integer
* added: CGamma<ValueType> class
is used with Gamma() and Factorial() in multithreaded environment
* changed: Factorial() is using the Gamma() function now
* removed: Parser<>::SetFactorialMax() method
the factorial() is such a fast now that we don't need the method longer
* removed: ErrorCode::err_too_big_factorial
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@178 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
fixed: some methods should set 'err_improper_argument' when the argument is a NaN object
(was: err_overflow)
changed: version of the library: 0.8.5 now
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@163 e52654a7-88a9-db11-a3e9-0013d4bc506e
the remainder from a division '%' was changed with a bitwise And operation '&'
((i % 5) == 0) was changed to: ((i & 3) == 0) - it means ((i % 4) == 0)
now the test if performed after 4 iterations (early were after 5 iterations)
we can do that when the divisor is a power of 2
changed: optimization in Factorial()
we're testing WasStopSignal() only after a few iterations
it's faster now about 4 times on GCC 4.3.3 (when stop object is provided to the factorial)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@161 e52654a7-88a9-db11-a3e9-0013d4bc506e
we can copy 'old_value = *this' only when 'testing' is true
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@160 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
bool Big::IsNan() - returns true if the NaN flag is set
void Big::SetNan() - sets the NaN flag
The NaN flag is set by default after creating an object:
Big<1, 2> a; // NaN is set (it means the object has not a valid number)
std::cout << a; // cout gives "NaN"
a = 123; // now NaN is not set
std::cout << a; // cout gives "123"
The NaN is set if there was a carry during calculations
a.Mul(very_big_value); // a will have a NaN set
The NaN is set if an argument is NaN too
b.SetNan();
a.Add(b); // a will have NaN because b has NaN too
If you try to do something on a NaN object, the result is a NaN too
a.SetNan();
a.Add(2); // a is still a NaN
The NaN is set if you use incorrect arguments
a.Ln(-10); // a will have the NaN flag
The only way to clear the NaN flag is to assign a correct value or other correct object
supposing 'a' has NaN flag, to remove the flag you can either:
a = 10;
a.FromInt(30);
a.SetOne();
a.FromBig(other_object_without_nan);
etc.
changed: renamed macro CONSTANTSGENERATOR to TTMATH_CONSTANTSGENERATOR
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@152 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
and the result was sometimes very big (even greater than x)
fixed: global function Mod(x) didn't set an ErrorCode object
fixed: global function Round() didn't test a carry
now it sets ErrorCode object
changed: function Sin(x) to Sin(x, ErrorCode * err=0)
when x was very big the function returns zero
now it sets ErrorCode object to err_overflow
and the result is undefined
the same is to Cos() function
changed: PrepareSin(x) is using Big::Mod() now when reducing 2PI period
should be a little accurate especially on a very big 'x'
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@143 e52654a7-88a9-db11-a3e9-0013d4bc506e
'typedef unsigned long long int ulint' has been put inside '#ifdef TTMATH_NOASM'
in order to not confuse a compiler while compiling with strict iso c++
(errors about not defining 'long long' in the c++ standard)
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@137 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
to make division first and then mutliplication -- the result is more
accurate especially when x is: 90,180,270 or 360
added: global template functions in ttmath.h:
ValueType GradToRad(const ValueType & x, ErrorCode * err = 0)
ValueType RadToGrad(const ValueType & x, ErrorCode * err = 0)
ValueType DegToGrad(const ValueType & x, ErrorCode * err = 0)
ValueType DegToGrad(const ValueType & d, const ValueType & m,
const ValueType & s, ErrorCode * err = 0)
ValueType GradToDeg(const ValueType & x, ErrorCode * err = 0)
added: Parser::SetDegRadGrad(int angle) - 0 deg, 1 rad (default), 2 grad
this affects following functions (in the parser only): sin, cos, tan, cot,
asin, acos, atan, acot
added: functions to the parser: gradtorad(grad), radtograd(rad), degtograd(deg),
degtograd(d,m,s), gradtodeg(grad)
removed: Big::Ln() and Big::Log() some old info was removed
git-svn-id: svn://ttmath.org/publicrep/ttmath/trunk@110 e52654a7-88a9-db11-a3e9-0013d4bc506e
Tomasz Sowa