tomasz.sowa/ttmath
1
0
Fork 0
Code Issues Pull Requests Releases Activity

added: flag TTMATH_BIG_ZERO to Big<> class

Browse Source 
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
This commit is contained in:
Tomasz Sowa
2009-09-11 04:24:42 +00:00
parent 74b31b1f54
commit e13e5eb329
3 changed files with 194 additions and 60 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
CHANGELOG
View File

@@ -1,4 +1,4 @@
Version 0.9.0 prerelease (2009.09.10):
Version 0.9.0 prerelease (2009.09.11):
* 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
@@ -26,7 +26,18 @@ Version 0.9.0 prerelease (2009.09.10):
* added: x86_64 asm code for Microsoft Visual compiler
file: ttmathuint_x86_64_msvc.asm
(this file should be compiled first because MS VC doesn't support inline assembler in x86_64 mode)
* added: flag TTMATH_BIG_ZERO to Big<> class
if this flag is set then there is a value zero
Big::IsZero() is faster now
* added: Big::ClearInfoBit(unsigned char)
Big::SetInfoBit(unsigned char)
Big::IsInfoBit(unsigned char)
some methods for manipulating the info flags
* changed: Factorial() is using the Gamma() function now
* changed: Big::Div(ss2)
Big::Mod(ss2)
they return 2 when ss2 is zero
previously returned 1
* 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