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2025-08-15Fix tests using assert_raise_with_message on US-ASCII systemsPeter Zhu
On systems where the Encoding.default_internal defaults to US-ASCII instead of UTF-8, some tests using assert_raise_with_message can fail since it no longer changes Encoding.default_internal in 79f5202. This tests explicitly uses EnvUtil.with_default_internal on systems where these tests fail.
2025-04-07Fix `Integer.sqrt` to never exceed actual valueYusuke Endoh
`Integer.sqrt` uses `sqrt(3)` from libm for small values. This method must return a value less than or equal to the actual integer square root, but libm's sqrt does not always guarantee that. This change corrects that by decrementing the result if necessary. Fixes [Bug #21217] Notes: Merged: https://github.com/ruby/ruby/pull/13076
2024-11-08Avoid calculating large powersYusuke Endoh
... for slow CI machines like macOS.
2024-11-08Do not round `a**b` to infinityYusuke Endoh
... instead, just calculate the value unless it is too big. Also, this change raises an ArgumentError if it is expected to exceed 16 GB in a 64-bit environment. (It is possible to calculate it straightforward, but it would likely be out-of-memory, so I didn't think it would make sense.) [Feature #20811] Notes: Merged: https://github.com/ruby/ruby/pull/12033
2024-07-30Move incorrectly placed testsPeter Zhu
The tests for Integer#ceil was accidentally placed in test_truncate.
2024-07-30Fix ceil when ndigits is largePeter Zhu
[Bug #20654] This commit fixes Integer#ceil and Float#ceil when the number is negative and ndigits is large such that 10**ndigits is a bignum. Previously, it would return 0 in such cases. However, this would cause unexpected behaviour such as: puts 1.ceil(-5) # => 100000 puts 1.ceil(-10) # => 10000000000 puts 1.ceil(-20) # => 0 This commit changes the last result so that it will return 100000000000000000000. Notes: Merged: https://github.com/ruby/ruby/pull/11257
2024-07-30Fix floor when ndigits is largePeter Zhu
[Bug #20654] This commit fixes Integer#floor and Float#floor when the number is negative and ndigits is large such that 10**ndigits is a bignum. Previously, it would return 0 in such cases. However, this would cause unexpected behaviour such as: puts -1.floor(-5) # => -100000 puts -1.floor(-10) # => -10000000000 puts -1.floor(-20) # => 0 This commit changes the last result so that it will return -100000000000000000000. Notes: Merged: https://github.com/ruby/ruby/pull/11257
2024-07-04Fix the return value of `Integer#downto` called with a blockNobuyoshi Nakada
As the document states, it should return `self`, not `nil`. Fix up of f4b313f7338f5fbe37f73aae29f70aeb474f7f5b.
2023-11-29[Bug #17037] Improve accuracy of division near precision limitsNobuyoshi Nakada
When dividing near the precision limit of `double`, use Bignum division to get rid of rounding errors.
2023-09-07Rewrite Integer#times in Ruby (#8388)Takashi Kokubun
Notes: Merged-By: k0kubun <takashikkbn@gmail.com>
2023-08-31[Bug #19349] Respect `#to_int` of `base` argumentNobuyoshi Nakada
Notes: Merged: https://github.com/ruby/ruby/pull/7144
2023-08-31Separate test for `Kernel#Integer` with `base` argumentNobuyoshi Nakada
Notes: Merged: https://github.com/ruby/ruby/pull/7144
2023-01-22Fix Integer#ceildiv to respect #coerce (#7118)Kouhei Yanagita
Fixes [Bug #19343] Notes: Merged-By: mrkn <mrkn@ruby-lang.org>
2023-01-08[Bug #19323] Raise `RangeError` instead of integer overflowNobuyoshi Nakada
Notes: Merged: https://github.com/ruby/ruby/pull/7087 Merged-By: nobu <nobu@ruby-lang.org>
2022-10-20[Bug #18998] Honor `#to_str` next to `#to_int` in `Kernel#Integer`Nobuyoshi Nakada
Notes: Merged: https://github.com/ruby/ruby/pull/6598
2022-08-12Add Numeric#ceildiv and Integer#ceildivKouhei Yanagita
Notes: Merged: https://github.com/ruby/ruby/pull/5965
2021-12-01Don't call + and < in Integer.times for !FIXNUMJeremy Evans
The methods aren't called for FIXNUM, and it's best to have consistent behavior. Fixes [Bug #18377] Notes: Merged: https://github.com/ruby/ruby/pull/5199
2021-07-29Improve performance of Integer#digitsJeremy Evans
This speeds up performance by multiple orders of magnitude for large integers. Fixes [Bug #14391] Co-authored-by: tompng (tomoya ishida) <tomoyapenguin@gmail.com> Notes: Merged: https://github.com/ruby/ruby/pull/4584
2021-07-16Add Integer.try_convert [Feature #15211]Nobuyoshi Nakada
Notes: Merged: https://github.com/ruby/ruby/pull/4654
2020-09-30Fix unsigned int overflow in error message for chrPeter Zhu
The error message has an integer overflow because it treats an unsigned int as a signed int. Before: ``` > 3_000_000_000.chr -1294967296 out of char range (RangeError) ``` After: ``` > 3_000_000_000.chr 3000000000 out of char range (RangeError) ``` Redmine ticket: https://bugs.ruby-lang.org/issues/17186 Notes: Merged: https://github.com/ruby/ruby/pull/3602
2019-10-21bignum.c (estimate_initial_sqrt): prevent integer overflowYusuke Endoh
`Integer.sqrt(0xffff_ffff_ffff_ffff ** 2)` caused assertion failure because of integer overflow. [ruby-core:95453] [Bug #16269]
2019-07-12Fixed duplicate test nameNobuyoshi Nakada
2019-07-11Check exception flag as a bool [Bug #15987]Nobuyoshi Nakada
2019-04-28numeric.c: Extend Integer#[] to support range argumentsYusuke Endoh
```` 0b01001101[2, 4] #=> 0b0011 0b01001100[2..5] #=> 0b0011 0b01001100[2...6] #=> 0b0011 ^^^^ ```` [Feature #8842]
2019-04-28test/ruby/test_integer.rb: Add a sane test for Integer#[]Yusuke Endoh
2019-01-12No FloatDomainError at non-finitive number if exception: falsenobu
[ruby-core:91021] [Bug #15525] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66797 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-12-06Warn redefinitions of some methods on Objectnobu
[Bug #5473] [Bug #14670] [Bug #15382] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66262 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-02Fix Rational of Floatnobu
[ruby-core:89239] [Bug #15189] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64897 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-09-29rational.c: may be floatnobu
* rational.c (f_muldiv): Integer#** can return Rational with Float right now. [ruby-core:89212] [Bug #15175] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64877 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-07-22object.c: prefer base optargnobu
* object.c (rb_f_integer): prefer `base` optional argument over keyword arguments. this issue should be resolved more generally by separating keyword arguments from hashes in the future. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64015 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-03-15Add `exception:` keyword in Kernel#Integer()mrkn
Support `exception:` keyword argument in Kernel#Integer(). If `exception:` is `false`, `Kernel#Integer()` returns `nil` if the given value cannot be interpreted as an integer value. The default value of `exception:` is `true`. This is part of [Feature #12732]. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62757 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-02-26Check the result of to_int in Kernel#Integermrkn
[ruby-core:85813] [Bug #14552] * object.c (rb_convert_to_integer): Check the result of to_int in Kernel#Integer * test/ruby/test_integer.rb: add tests. * spec/ruby/core/kernel/Integer_spec.rb: fix examples. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62581 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-09-22numeric.c: use NUM2DBLnobu
* numeric.c (fix_fdiv_double), bignum.c (rb_big_fdiv_double): use NUM2DBL on unknown object. RFLOAT_VALUE is only appliicable to T_FLOAT object. [ruby-core:82924] [Bug #13928] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59986 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-05-06make Integer#{round,floor,ceil,truncate} always return integerstomar
* numeric.c (int_round): return integer (self) instead of float for Integer#round with positive ndigits argument, because conversion to float introduces errors for large integers. * numeric.c (int_floor): ditto for Integer#floor. * numeric.c (int_ceil): ditto for Integer#ceil. * numeric.c (int_truncate): ditto for Integer#truncate. * test/ruby/test_integer.rb: adjust test cases and add some more. [ruby-core:80645] [Bug #13420] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58586 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-04-16test_integer.rb: simplify teststomar
* test/ruby/test_integer.rb: simplify test for Integer.sqrt. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58372 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-04-15bignum.c: fix inexact estimationnobu
* bignum.c (estimate_initial_sqrt): estimated square root is inexact if it is not equal to its ceil, needs Newton's method. [ruby-core:80696] [Bug #13440] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58366 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-02-24Integer.sqrt argument checknobu
* 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
2017-02-24Integer.sqrt [Feature #13219]nobu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57705 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-12-10internal.h: change the default rounding mode to half-upmrkn
* internal.h (ROUND_DEFAULT): changed to RUBY_NUM_ROUND_HALF_UP. [Bug #12958] [ruby-core:78204] * test/ruby/test_integer.rb: fix assertions for the above change. * test/ruby/test_rational.rb: ditto. * test/test_mathn.rb: ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57038 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-11-25round-downnobu
* numeric.c (round_half_down, int_round_half_down): support round-down mode. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56897 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-11-05numeric.c: round to nearest evennobu
* 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
2016-11-01numeric.c: bit op with non-integernobu
* numeric.c (rb_num_coerce_bit): enable bit operations with coercing by non-integer object. [ruby-core:77783] [Bug #12875] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56543 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-11-01test_integer.rb: common partsnobu
* test/ruby/test_integer.rb (MimicInteger, CoercionToInt): extract common parts. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56540 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-10-27object.c: fixable float to fixnumnobu
* object.c (rb_convert_to_integer): convert a fixable float to a fixnum directly without the convesion method, as well as bignum case. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56497 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-10-27object.c: use converted stringnobu
* object.c (rb_convert_to_integer): should not drop the converted string. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56495 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-06-13numeric.c: Add Integer#digits [Feature #12447] [ruby-core:75799]mrkn
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55395 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-05-17[Feature #12005] Unify Fixnum and Bignum into Integerakr
* [Feature #12005] Unify Fixnum and Bignum into Integer * include/ruby/ruby.h (rb_class_of): Return rb_cInteger for fixnums. * insns.def (INTEGER_REDEFINED_OP_FLAG): Unified from FIXNUM_REDEFINED_OP_FLAG and BIGNUM_REDEFINED_OP_FLAG. * vm_core.h: Ditto. * vm_insnhelper.c (opt_eq_func): Use INTEGER_REDEFINED_OP_FLAG instead of FIXNUM_REDEFINED_OP_FLAG. * vm.c (vm_redefinition_check_flag): Use rb_cInteger instead of rb_cFixnum and rb_cBignum. (C): Use Integer instead of Fixnum and Bignum. * numeric.c (fix_succ): Removed. (Init_Numeric): Define Fixnum as Integer. * bignum.c (bignew): Use rb_cInteger instead of Rb_cBignum. (rb_int_coerce): replaced from rb_big_coerce and return fixnums as-is. (Init_Bignum): Define Bignum as Integer. Don't define ===. * error.c (builtin_class_name): Return "Integer" for fixnums. * sprintf.c (ruby__sfvextra): Use rb_cInteger instead of rb_cFixnum. * ext/-test-/testutil: New directory to test. Currently it provides utilities for fixnum and bignum. * ext/json/generator/generator.c: Define mInteger_to_json. * lib/mathn.rb (Fixnum#/): Redefinition removed. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55024 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-04-18numeric.c: int_truncatenobu
* numeric.c (int_truncate): add an optional parameter, digits, as well as Integer#round. [Feature #12245] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54624 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-04-13numeric.c: int_ceilnobu
* numeric.c (int_ceil): add an optional parameter, digits, as well as Integer#round. [Feature #12245] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54562 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-04-13numeric.c: int_floornobu
* numeric.c (int_floor): add an optional parameter, digits, as well as Integer#round. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54561 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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