Commit Graph

101 Commits

Author SHA1 Message Date
Tomasz Sowa 413c83de45 updated: CHANGELOG and README
git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-10-25 16:42:41 +00:00
Tomasz Sowa bf520689fb added: to the parser: operator percentage
e.g. 1000-50%=1000-(1000*0,5)=500

git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-10-18 12:37:14 +00:00
Tomasz Sowa af4fbf3098 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

git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-10-16 16:56:49 +00:00
Tomasz Sowa 462ff7cc65 fixed: buffer overflow in Big::ToInt(Int<int_size> & result)
changed: small optimization in ToInt(Int<int_size> & result)

git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-10-15 01:34:13 +00:00
Tomasz Sowa 02da809583 added: bool Parser::Calculated()
this method returns true is something was calculated
       (at least one mathematical operator was used or a function or variable)

git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-10-13 22:38:08 +00:00
Tomasz Sowa 32ebbbfd9e removed: Big::AboutEqualWithoutSign()
it was broken (it lacks the case when either 'this' or 'ss2' is zero)

git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-10-12 23:27:14 +00:00
Tomasz Sowa e765fba8a1 changed: Big::AboutEqual()
it lacks the case when either 'this' or 'ss2' is zero

git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-10-12 23:25:35 +00:00
Tomasz Sowa a8eb29e57d 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
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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-10-03 01:10:08 +00:00
Tomasz Sowa 31b8c242bd changed: if TTMATH_DEBUG_LOG is defined then TTMATH_USE_KARATSUBA_MULTIPLICATION_FROM_SIZE is always 3
(regardless of the compiler)

git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-09-20 20:41:11 +00:00
Tomasz Sowa 4c0d8c26ff changed: small optimization in ttmath_subindexed_x64()
(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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-09-20 20:10:29 +00:00
Tomasz Sowa 01a86e40d9 changed: small changes in UInt::Div_CalculatingSize()
some warnings were raported by GCC
         (uninitialized variable)

git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-09-20 12:47:44 +00:00
Tomasz Sowa f19078f9f1 fixed: Factorial(const ValueType & x, ErrorCode * err = 0)
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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-09-17 23:18:11 +00:00
Tomasz Sowa adc5015ad9 small optimization in Parser::Parse(const wchar_t *)
git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-09-13 19:29:29 +00:00
Tomasz Sowa da730d1c70 fixed: Big::operator>> didn't correctly recognize values in scientific mode (with 'e' character)
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
           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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-09-13 19:16:42 +00:00
Tomasz Sowa 9ccacd8817 added: uint __fastcall ttmath_addvector_x64(const uint * ss1, const uint * ss2, uint ss1_size, uint ss2_size, uint * result);
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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-09-11 23:55:44 +00:00
Tomasz Sowa b3d27979d0 changed: removing some MS VC warnings when compiling x86_64 target
git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-09-11 20:48:52 +00:00
Tomasz Sowa e13e5eb329 added: flag TTMATH_BIG_ZERO to Big<> class
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)
         they return 2 when ss2 is zero
         previously returned 1

git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-09-11 04:24:42 +00:00
Tomasz Sowa 74b31b1f54 fixed/optimized: Big::AboutEqual() didn't compile on GCC
(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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-09-10 16:28:05 +00:00
Tomasz Sowa 28964d30f7 merged: x86_64 asm code for Microsoft Visual compiler
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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-09-07 02:03:00 +00:00
Tomasz Sowa 0d71b0cec2 merged: AboutEqual() from chk branch
deleted: properties svn:mime-type from ttmath.h
         (it was for testing viewvc)

git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-09-05 16:43:38 +00:00
Tomasz Sowa 3544a1df3c setting svn:mime-type to text/plain for ttmath.h
git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-08-24 05:08:13 +00:00
Tomasz Sowa 00519ff26d added/fixed: special version of ToString_LogBase() method
in single thread environment
             the previous version of the method didn't store
             the calculated logarithms

git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-08-04 18:55:18 +00:00
Tomasz Sowa 799e2c32a7 added: multithread support for Big<> class
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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-08-04 18:23:35 +00:00
Tomasz Sowa 53547cfab5 * added: global Gamma() function
* 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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-07-16 03:22:29 +00:00
Tomasz Sowa d3a64b79ca added: support for wide characters (wchar_t)
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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-07-02 01:04:25 +00:00
Tomasz Sowa c70a947c07 updated changelog to previous commit
git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-06-16 18:33:20 +00:00
Tomasz Sowa 8972fdfdb3 fixed: Sqrt(), Root() and Factorial() didn't correctly treat the NaN flag
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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-06-16 18:31:39 +00:00
Tomasz Sowa 019a902fed changed: small optimization in Big::ExpSurrounding0() and Big::LnSurrounding1()
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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-06-14 19:55:15 +00:00
Tomasz Sowa 74553109a5 fixed: (performance) in Big::LnSurrounding1() and Big::ExpSurrounding0()
we can copy 'old_value = *this' only when 'testing' is true

git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-06-14 18:45:36 +00:00
Tomasz Sowa 9e42a5a9fd fixed: Big::FromDouble() on a 32 bit platform:
SetNaN() should be SetNan() /*compilation error*/

git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-06-11 15:03:22 +00:00
Tomasz Sowa 1b6858616d fixed: in Big::FromDouble(): SetNaN() should be SetNan();
git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-06-11 10:04:50 +00:00
Tomasz Sowa d789ac5396 added: using NaN flag in method Big::ToDouble() and Big::FromDouble()
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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-06-11 02:31:41 +00:00
Tomasz Sowa bb2583649e added: to Big<> class: support for NaN flag (Not a Number)
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
	     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.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;

git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-05-26 23:13:22 +00:00
Tomasz Sowa 5e5a106605 changed: a little changes in all asm code
it should be a little faster

git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-05-17 00:04:42 +00:00
Tomasz Sowa eaa19dd46a added: uint UInt::Mul3(const UInt<value_size> & ss2)
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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-05-15 22:27:04 +00:00
Tomasz Sowa 939d0f7519 fixed: Big::Mod(x) didn't correctly return a carry
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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-05-11 01:50:00 +00:00
Tomasz Sowa 05b67e7103 changed: corrected spaces in changelog
git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-05-09 01:34:45 +00:00
Tomasz Sowa 3231780a85 changed: version of the library: 0.8.4
git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-05-08 19:13:25 +00:00
Tomasz Sowa 1bae0d6cb8 changed: in ttmathtypes.h
'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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-05-08 18:40:32 +00:00
Tomasz Sowa 277dd72fb6 fixed: UInt::AddInt() in no-asm code has incorrect assertion
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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-05-08 18:14:00 +00:00
Tomasz Sowa a7a7eb7808 fixed: deleted default values for variables in some methods (file ttmathuint_x86.h)
(they should only be put in declaration)

git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-05-05 07:47:10 +00:00
Tomasz Sowa e665f91682 fixed: the problem with GCC optimization on x86_64
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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-05-05 07:20:10 +00:00
Tomasz Sowa 85945b2bb0 added: ttmathuint_x86.h, ttmathuint_x86_64.h, ttmathuint_noasm.h,
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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-05-04 20:51:12 +00:00
Tomasz Sowa 1efe39686b added: UInt::PrintLog(const char * msg, std::ostream & output)
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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-05-01 14:53:21 +00:00
Tomasz Sowa d8b829f4c5 changed: version of the library: 0.8.3 now
git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-04-06 16:34:19 +00:00
Tomasz Sowa fca1bc1a33 added: Objects::IsDefined(const std::string & name)
returning true if such an object is defined

git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-04-02 05:21:49 +00:00
Tomasz Sowa c65857297b fixed: the parser didn't correctly treat operators for changing the base
(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:
       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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-03-28 17:40:36 +00:00
Tomasz Sowa f530635262 changed: doxygen.cfg changed lines ends: dos mode to unix mode (\r\n to \n)
git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-03-27 22:35:41 +00:00
Tomasz Sowa 9327b4ebd4 changed: updated CHANGELOG to previous commit
git-svn-id: svn:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-03-27 22:31:54 +00:00
Tomasz Sowa d695785cbb fixed: in function DegToRad(const ValueType & x, ErrorCode * err = 0) it is better
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:// e52654a7-88a9-db11-a3e9-0013d4bc506e
2009-03-27 22:26:51 +00:00