* win32/Makefile.sub (config.h): define ULL_TO_DOUBLE for
conversion from unsigned __int64 to double, which is not
implemented in till Visual Studio.NET 2003, aka VC7.1.
* bignum.c (estimate_initial_sqrt): use ULL_TO_DOUBLE if defined.
* numeric.c (BDIGIT_DBL_TO_DOUBLE): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57740 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* numeric.c (DEFINE_INT_SQRT): suppress a type-limits warning
where int is always smaller than double.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57739 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* numeric.c (rb_int_s_isqrt): check if the argument is an integer.
[Feature #13219]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57706 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* numeric.c (num_clone, num_dup): no longer raises TypeError,
returns the receiver instead as well as Integer and Float.
[ruby-core:79636] [Bug #13237]
* object.c (rb_immutable_obj_clone): immutable object clone with
freeze optional keyword argument.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57682 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
NOTE:
(1) Fixnum's LSB is always 1.
It means you can always run `x - 1` without overflow.
(2) Of course `z = x + (y-1)` may overflow.
Now z's LSB is always 1, and the MSB of true result is also 1.
You can get true result in long as `(1<<63)|(z>>1)`,
and it equals to `(z<<63)|(z>>1)` == `ror(z)`.
GCC and Clang have __builtin_add_ovewflow:
* https://gcc.gnu.org/onlinedocs/gcc/Integer-Overflow-Builtins.html
* https://clang.llvm.org/docs/LanguageExtensions.html#checked-arithmetic-builtins
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57506 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* numeric.c (fix_mul): short circuit when multiplication of Bignum
and 0 or 1 not to make a Bignum unnecessarily.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57296 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* numeric.c (int_pow): short circuit when y is 0, always return 1.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57270 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* numeric.c (rb_int_fdiv_double): reduce first for more precise
result. [ruby-core:78886] [Bug #13078]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57227 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* numeric.c (rb_num_get_rounding_option): remove not used
lines. After r57130 these lines are never reached.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57141 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* numeric.c (rb_num_get_rounding_option): allow nil same as the
default behavior, per [ruby-core:77961]. [Bug #12548]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57130 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* numeric.c (round_half_up, round_half_down): use `round` always because it's
defined in this file even if doesn't exist.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57068 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* numeric.c (rb_num_get_rounding_option): fix exception message
for the case of nil rounding mode.
* test_float.rb: add an assertion for the above change.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57000 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* complex.c (f_gt_p): optimize f_gt_p for specific types of arguments.
* internal.h (rb_int_gt, rb_float_gt, rb_rational_cmp): exported.
* numeric.c (rb_float_gt): rename from flo_gt and be exported.
* numeric.c (rb_int_gt): rename from int_gt and be exported.
* rational.c (rb_rational_cmp): rename from nurat_cmp and be exported.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56872 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* complex.c (f_negate): optimize for special numeric types.
* complex.c (nucomp_expt): use rb_int_uminus instead of f_negate for
fixnum value.
* internal.h (rb_float_uminus, rb_rational_uminus): exported.
* numeric.c (rb_float_uminus): rename from flo_uminus.
* rational.c (rb_rational_uminus): rename from nurat_negate, and add
assertion for the parameter.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56830 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* complex.c (numeric_polar): optimize for Integer, Float, and Rational.
* complex.c (numeric_arg): directly create the value of pi.
* complex.c (f_negative_p): optimize for Integer, Float, and Rational.
* rational.c (INT_NEGATIVE_P): move the definition into internal.h.
* internal.h (INT_NEGATIVE_P): ditto.
* numeric.c (rb_float_abs): rename from flo_abs and export to be used
from other source files..
* internal.h (rb_float_abs): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56809 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* numeric.c (num_equal): limit return value to true or false,
instead of the result of the other as-is.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56764 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* rational.c (nurat_to_double): introduce to convert rational to double
without object allocation.
* rational.c (rb_rational_plus, nurat_{sub,mul,to_f}): rewrite by using
nurat_to_double.
* bignum.c (rb_big_fdiv_double): introduce to calculate fdiv and return
the result as a double value.
* bignum.c (big_fdiv{,_int,_float}): change the return types for
implementing rb_big_fdiv_double.
* bignum.c (rb_big_fdiv): rewrite by using rb_big_fdiv_double.
* numeric.c (rb_int_fdiv_double): introduce to calculate fdiv and return
the result as a double value.
* numeric.c (fix_fdiv_double): rewrite from fix_fdiv to return the
result as a double value.
* numeric.c (rb_int_fdiv): rewrite by using rb_int_fdiv_double.
* internal.h (rb_{big,int}_fdiv_double): exported.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56719 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
[Feature #12142]
See header of st.c for improvment details.
You can see all of code history here:
<https://github.com/vnmakarov/ruby/tree/hash_tables_with_open_addressing>
This improvement is discussed at
<https://bugs.ruby-lang.org/issues/12142>
with many people, especially with Yura Sokolov.
* st.c: improve st_table.
* include/ruby/st.h: ditto.
* internal.h, numeric.c, hash.c (rb_dbl_long_hash): extract a function.
* ext/-test-/st/foreach/foreach.c: catch up this change.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56650 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* numeric.c (int_pos_p, int_neg_p): raise TypeError if not an
Integer instead of returning nil.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56606 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* numeric.c (flo_round, int_round): support round-to-nearest-even
semantics of IEEE 754 to match sprintf behavior, and add `half:`
optional keyword argument for the old behavior.
[ruby-core:76273] [Bug #12548]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56590 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
a hash value of Object might be Bignum, but it causes many troubles
expecially the Object is used as a key of a hash. so I've gave up
to do so.
* array.c (rb_ary_hash): use above macro.
* bignum.c (rb_big_hash): ditto.
* hash.c (rb_obj_hash, rb_hash_hash): ditto.
* numeric.c (rb_dbl_hash): ditto.
* proc.c (proc_hash): ditto.
* re.c (rb_reg_hash, match_hash): ditto.
* string.c (rb_str_hash_m): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56340 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
