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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41869 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41868 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41866 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(bigrsh_bang): Ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41842 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41841 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41839 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(bary_mul_balance): Ditto.
(bary_mul_karatsuba): Ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41833 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(rb_big_mul_toom3): Ditto.
* internal.h (rb_big_sq_fast): Declared.
(rb_big_mul_toom3): Ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41832 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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a warning.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41831 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41830 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41828 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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several branches.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41826 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(rb_big_mul_balance): Ditto.
(rb_big_mul_karatsuba): Ditto.
* bignum.c (rb_big_mul_normal): New function for tests.
(rb_big_mul_balance): Ditto.
(rb_big_mul_karatsuba): Ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41824 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41823 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41822 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(bary_sub): Returns a borrow flag. Use bary_subb.
(bary_subb): New function for actually calculating subtraction with
borrow.
(bary_sub_one): New function.
(bigadd_core): Use bary_add.
(bary_add): Returns a carry flag. Use bary_addc.
(bary_addc): New function for actually calculating addition with
carry.
(bary_add_one): New function.
(bary_muladd_1xN): Extracted from bary_mul_normal.
(bigmul1_normal): Removed.
(bary_mul_karatsuba): New function.
(bary_mul1): Invoke rb_thread_check_ints after bary_mul_normal.
(bary_mul): Remove most and least significant zeros before actual
multiplication. Use bary_sq_fast, bary_mul_balance,
bary_mul_karatsuba and bigmul1_toom3 as bigmul0.
(bigmul1_balance): Removed.
(bigmul1_karatsuba): Removed.
(bigsqr_fast): Removed.
(bary_sparse_p): Extracted from big_sparse_p.
(big_sparse_p): Removed.
(bigmul0): Use bary_mul.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41821 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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ensure not to access zds[2*xn].
(bigsqr_fast): Allocate the result bignum with 2*xn words.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41813 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(bary_mul1): Renamed from bary_mul.
(bary_mul): Renamed from bary_mul2.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41784 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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use bary_mul2 and bary_add to decrease allocations.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41783 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* bignum.c: constify maxpow tables.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41776 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(maxpow_in_bdigit): Ditto.
(U16): New macro.
(U32): Ditto.
(U64): Ditto.
(U128): Ditto.
(maxpow16_exp): New table.
(maxpow16_num): New table.
(maxpow32_exp): New table.
(maxpow32_num): New table.
(maxpow64_exp): New table.
(maxpow64_num): New table.
(maxpow128_exp): New table.
(maxpow128_num): New table.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41773 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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very big base non-power-of-2 numbers.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41772 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* util.c (ruby_digit36_to_number_table): Moved from scan_digits.
* bignum.c (conv_digit): Use ruby_digit36_to_number_table.
* pack.c (hex2num): Ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41757 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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maxpow.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41751 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(rb_ull2big): Fix bignew arguments.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41750 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41749 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41748 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(BDIGIT_DBL_MAX): New macro.
(maxpow_in_bdigit_dbl): New function.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41747 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(rb_cstr_to_inum): Use a better algorithm to compose the result
if input length is very long.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41726 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41718 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(nlz32): Ditto.
(nlz64): Ditto.
(nlz128): Ditto.
(nlz): Redefined using an above function.
(bitsize): New macro.
(rb_cstr_to_inum): Use bitsize instead of nlz.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41716 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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of 2.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41713 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41698 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(RBIGNUM_SET_POSITIVE_SIGN): Ditto.
(rb_big_neg): Inline get2comp to avoid double negation.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41696 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(bary_plus_one): Extracted from bary_2comp.
(bary_2comp): Use bary_neg and bary_plus_one.
(big_extend_carry): Extracted from get2comp.
(get2comp): Use big_extend_carry.
(rb_integer_unpack): Use big_extend_carry.
(rb_big_neg): Use bary_neg.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41695 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41694 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41693 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(bigxor_int): Take xn and hibitsx arguments. Use twocomp2abs_bang.
(rb_big_xor): Use abs2twocomp and twocomp2abs_bang.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41692 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(bigor_int): Take xn and hibitsx arguments. Use twocomp2abs_bang.
(rb_big_or): Use abs2twocomp and twocomp2abs_bang.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41691 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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argument if it's high bits are zero.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41687 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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Use twocomp2abs_bang.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41683 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(abs2twocomp): Take n_ret argument to return actual length.
(rb_big_and): Follow above change.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41681 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(abs2twocomp_bang): New function.
(abs2twocomp): New function.
(twocomp2abs_bang): New function.
(rb_big_and): Use abs2twocomp and twocomp2abs_bang.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41680 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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representable as a Fixnum.
Use rb_absint_numwords.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41667 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41641 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41640 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(bigor_int): The allocated bignum should have enough size
to store long.
This fixes (bignum fits in a BDIGIT) | (fixnum bigger than BDIGIT)
on platforms which SIZEOF_BDIGITS < SIZEOF_LONG,
such as LP64 with 32bit BDIGIT (no int128).
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41639 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41637 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41636 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41631 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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