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2013-08-01* bignum.c (big2str_alloc): New function to allocate the result string. akr
It is called after actual length is calculated. (big2str_struct): Add fields: negative, result and ptr. (big2str_orig): Write out the result via b2s->ptr. (big2str_orig): Ditto. (rb_big2str1): Don't allocate the result string at beginning. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42303 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-31* bignum.c (big2str_orig): Use temporary buffer when trim mode.akr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42302 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-31* bignum.c (big2str_orig): Simplified because RBIGNUM_LEN(x) <= 2 now.akr
(big2str_struct): Two fields added: hbase2, hbase2_numdigits. (rb_big2str1): Initialize above fields. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42301 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-31* bignum.c (big2str_karatsuba): Fix a condition of power_level.akr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42298 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-31* remove trailing spaces.nobu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42296 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-31* bignum.c (LOG2_KARATSUBA_BIG2STR_DIGITS): Removed.akr
(KARATSUBA_BIG2STR_DIGITS): Removed. (big2str_numdigits_cache): New variable. (power_cache_get_power): Merged with power_cache_get_power0. This function returns maxpow_in_bdigit_dbl(base)**(2**power_level). (rb_big2str1): use power_cache_get_power. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42295 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-31* bignum.c (big2str_find_n1): Change the return type to size_t.akr
(big2str_orig): Ditto. (big2str_karatsuba): Ditto. (rb_big2str1): Follow the above changes. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42294 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-31* bignum.c (power_cache_get_power): Change numdigits_ret to size_t *.akr
(big2str_orig): Change len argument to size_t. (big2str_karatsuba): Ditto. (rb_big2str1): Follow the above changes. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42291 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-31* bignum.c (bary_cmp): Extracted from rb_big_cmp.akr
(power_cache_get_power): Change n1 argument (number of digits) to power_level which is just passed to power_cache_get_power0. (big2str_karatsuba): Ditto. (rb_big2str1): Calculate the initial power_level. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42285 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-31* bignum.c (MAX_BIG2STR_TABLE_ENTRIES): Use SIZEOF_SIZE_T.akr
(power_cache_get_power0): Add rb_bug call for too bit i argument. (power_cache_get_power): Simplified. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42274 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-31* bignum.c (big2str_struct): New structure.akr
(big2str_orig): Use big2str_struct. (big2str_karatsuba): Ditto. (rb_big2str1): Ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42262 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-29* bignum.c (LOG2_KARATSUBA_BIG2STR_DIGITS): Renamed fromakr
LOG2_KARATSUBA_DIGITS. (KARATSUBA_BIG2STR_DIGITS): Renamed from KARATSUBA_DIGITS. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42240 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-28* bignum.c (bigdivrem): Specialized implementation added forakr
nx == 2 && ny == 2 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42218 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-28* bignum.c (absint_numwords_generic): The char_bit variable changedakr
to a static constant. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42210 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-28* bignum.c: Constify bary_* functions.akr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42209 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-28* include/ruby/intern.h (rb_absint_size): Declaration moved fromakr
internal.h to calculate required buffer size to pack integers. (rb_absint_numwords): Ditto. (rb_absint_singlebit_p): Ditto. [ruby-core:42813] [Feature #6065] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42208 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-27* bignum.c (rb_big_size): Return the bignum "bytewise" size.akr
[ruby-core:55578] [Feature #8553] This is accepted by matz on DevelopersMeeting20130727Japan. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42204 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-23* bignum.c: Move functions.akr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42140 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-23* bignum.c (bary_divmod): Add special cases for x < y easily detectedakr
and nx == 2 && ny == 2. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42139 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-22* bignum.c (bary_mulsub_1xN): New function.akr
(bary_mul_toom3): Use bary_mulsub_1xN. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42123 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-22* bignum.c (KARATSUBA_BALANCED): New macro.akr
(TOOM3_BALANCED): Ditto. (bary_mul_balance_with_mulfunc): Use KARATSUBA_BALANCED and TOOM3_BALANCED. (rb_big_mul_balance): Relax a condition. (rb_big_mul_karatsuba): Use KARATSUBA_BALANCED. (rb_big_mul_toom3): Use TOOM3_BALANCED. (bary_mul_karatsuba_branch): Use KARATSUBA_BALANCED. (bary_mul_toom3_branch): Use TOOM3_BALANCED. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42122 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-22* bignum.c (bigdivrem_mulsub): Extracted from bigdivrem1.akr
(bigdivrem1): Use bary_add. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42119 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-21* bignum.c (bary_sq_fast): Refine expressions.akr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42097 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-21* bignum.c (bary_mul): Use simple multiplication if yl is small.akr
(rb_cstr_to_inum): Invoke bigsq instead of bigmul0. (bigsq): Re-implemented. (bigmul0): Invoke bigsq if two arguments are identical. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42096 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-21* bignum.c (bary_mul_toom3): New function based on bigmul1_toom3.akr
(bary_mul_toom3_branch): Call bary_mul_toom3. (rb_big_mul_toom3): Ditto. (bigmul1_toom3): Removed. (big_real_len): Ditto. (big_split): Ditto. (big_split3): Ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42095 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-20Update a comment for Toom3.akr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42084 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-18* bignum.c (bary_sq_fast): Specialize the last iteration of theakr
outer loop. (bigfixize): A condition simplified. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42044 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-18* bignum.c (BDIGITS_ZERO): Defined.akr
(bary_pack): Use BDIGITS_ZERO. (bary_unpack): Ditto. (bary_mul_single): Ditto. (bary_mul_normal): Ditto. (bary_sq_fast): Ditto. (bary_mul_balance_with_mulfunc): Ditto. (bary_mul_precheck): Ditto. (bary_mul_toom3_branch): Ditto. (rb_cstr_to_inum): Ditto. (big_shift3): Ditto. (bigmul1_toom3): Ditto. (bary_divmod): Ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42032 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-17* bignum.c: An static assertion for relation of SIZEOF_LONG andakr
SIZEOF_BDIGITS is added. (bary_mul_precheck): Reduce comparisons. (bary_mul): Invoke bary_sq_fast or bary_mul1 if the bignum size is small. (bigfixize): Resize the argument bignum here. (bignorm): Don't call bigtrunc after bigfixize. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42028 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-16* bignum.c (bigmul1_toom3): Use bigdivrem_single instead of bigdivrem.akr
(big_three): Removed. (Init_Bignum): Don't initialize big_three. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42010 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-16* bignum.c (bigsq): Renamed from bigsqr.akr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42007 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-16* bignum.c (USHORT): Unused macro removed.akr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42006 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-16* bignum.c (big_shift3): Big shift width is not a problem for rightakr
shift. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42004 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-16* bignum.c (bary_mul_karatsuba): Avoid duplicate calculation whenakr
squaring. ((bary_mul_toom3_branch): Ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42001 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-15Fix spaces.akr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41988 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-15* include/ruby/intern.h (rb_big2str0): Deprecated.akr
* bignum.c (rb_big2str1): Renamed from rb_big2str0. (rb_big2str0): Deprecated wrapper for rb_big2str1. (rb_big2str): Invoke rb_big2str1 instead of rb_big2str0. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41987 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-15* bignum.c: Add static assertions.akr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41985 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-15* bignum.c (maxpow_in_bdigit_dbl): Useless #if removed.akr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41980 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-15* bignum.c (rb_big_coerce): [DOC] Add docs for Bignum#coercezzak
Based on patch by Juanito Fatas [Fixes GH-360] https://github.com/ruby/ruby/pull/360 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-15bignum.c: suppress warningsnobu
* bignum.c (big_shift2, rb_big_lshift, rb_big_rshift): cast explicitly to suppress warnings. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41978 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-15* bignum.c (nlz16): Use __builtin_clz if possible.akr
(nlz32): Use __builtin_clz or __builtin_clzl if possible. (nlz64): Use __builtin_clzl or __builtin_clzll if possible. (nlz128): Use __builtin_clzll if possible. * configure.in: Check __builtin_clz, __builtin_clzl and __builtin_clzll. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41976 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-15* bignum.c (power_cache_get_power): Use bitsize insteadof ceil_log2.akr
(ones): Removed. (next_pow2): Removed. (floor_log2): Removed. (ceil_log2): Removed. * configure.in (__builtin_popcountl): Don't check. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41974 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-14* configure.in: Check __builtin_popcountl, __builtin_bswap32 andakr
__builtin_bswap64. * internal.h (swap32): Use the configure result for the condition to use __builtin_bswap32. (swap64): Use the configure result for the condition to use __builtin_bswap64. * bignum.c (ones): Use the configure result for the condition to use __builtin_popcountl. (bary_unpack_internal): Use appropriate types for swap argument. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41963 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-14* bignum.c (bary_subb): Support xn < yn.akr
(bigsub_core): Removed. (bigsub): Don't compare before subtraction. Just subtract and get the two's complement if the subtraction causes a borrow. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41962 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-13* bignum.c (DIGSPERLONG): Unused macro removed.akr
(DIGSPERLL): Ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41961 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-13* bignum.c (rb_big_aref): Less scan when the number is negative.akr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41960 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-13* bignum.c (big_shift): Avoid signed integer overflow.akr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41959 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-13* bignum.c (bary_mul_precheck): Use bary_small_lshift orakr
bary_mul_normal if xl is 1. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41955 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-13* bignum.c (big_shift3): New function.akr
big_lshift and big_rshift are merged. (big_shift2): New function. (big_lshift): Use big_shift3. (big_rshift): Ditto. (check_shiftdown): Removed. (rb_big_lshift): Use big_shift2 and big_shift3. (rb_big_rshift): Ditto. (big_lshift): Removed. (big_rshift): Ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41942 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-07-13* bignum.c (bary_small_lshift): Use size_t instead of long.akr
(bary_small_rshift): Ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41940 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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