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2021-03-20random.c: fixed seed underflow bug.Yukihiro "Matz" Matsumoto
`MRB_INT_MIN` does not have a corresponding positive value.
2021-02-26Use `MRB_SYM()` more extensively.Yukihiro "Matz" Matsumoto
2021-01-26Revert "Minimize the changes in #5277"Yukihiro "Matz" Matsumoto
This reverts commit dc51d89ac22acc60b9bfeed87115863565b74085.
2021-01-22Minimize the changes in #5277Yukihiro "Matz" Matsumoto
Instead of including `mruby/presym.h` everywhere, we provided the fallback `mruby/presym.inc` under `include/mruby` directory, and specify `-I<build-dir>/include` before `-I<top-dir>/include` in `presym.rake`. So even when someone drops `-I<build-dir>/include` in compiler options, it just compiles without failure.
2021-01-11Avoid including `presym.inc` in existing header filesKOBAYASHI Shuji
Addressed an issue where existing programs linking `libmruby.a` could only be built by adding `<build-dir>/include` to compiler's include path.
2020-12-19🔒 Fix missing HTTPS on linksJohn Bampton
2020-10-12Use `mrb_int_value()` instead of `mrb_fixnum_value()`.Yukihiro "Matz" Matsumoto
Where fixnum overflow can happen.
2020-10-12Update `mruby-random` gem to support 32 bit platforms.Yukihiro "Matz" Matsumoto
`sizeof(rand_state)` had been bigger than `sizeof(void*)*3`. Changed random number generator to `Xorshift96` on 32 bit platforms.
2020-10-12Reorganize `Integer` system.Yukihiro "Matz" Matsumoto
- Integrate `Fixnum` and `Integer` - Remove `Integral` - `int / int -> int` - Replace `mrb_fixnum()` to `mrb_int()` - Replace `mrb_fixnum_value()` to `mrb_int_value()`. - Use `mrb_integer_p()` instead of `mrb_fixnum_p()`
2020-10-12Use xoshiro128++ instead of xorshift96/128.Yukihiro "Matz" Matsumoto
2020-10-12Fix `rand_real` to return random number `[0,1)` not `[0,1]`.Yukihiro "Matz" Matsumoto
2020-10-12Rename float configuration option names.Yukihiro "Matz" Matsumoto
- `MRB_WITHOUT_FLOAT` => `MRB_NO_FLOAT` - `MRB_USE_FLOAT` => `MRB_USE_FLOAT32` The former is to use `USE_XXX` naming convention. The latter is to make sure `float` is 32bit float and not floating point number in general.
2020-10-12Avoid breaking the `result` array by side-effect in C++.Yukihiro "Matz" Matsumoto
2020-10-12Use functions that take symbols to reduce string litrals in C.Yukihiro "Matz" Matsumoto
2020-10-12Add `MRB_SYM()` for inline symbols.Yukihiro "Matz" Matsumoto
2020-06-29Work around more MSC optimzer bugsRory OConnell
2020-06-26Reduce scope of volatile keyword for MSC bugRory OConnell
2020-06-26Narrower scope working around MSC bugRory OConnell
2020-06-26work around MSC optimization generating non functional codeRory OConnell
2019-09-26Use type predicate macros instead of `mrb_type` if possibleKOBAYASHI Shuji
For efficiency with `MRB_WORD_BOXING` (implement type predicate macros for all `enum mrb_vtype`).
2019-08-27Fix build of `mruby-random` on 32-bit modeKOBAYASHI Shuji
2019-08-26Fix `Array#sample` with `MRB_INT32`KOBAYASHI Shuji
Array index became potentially negative because `uint32_t` is cast to `mrb_int`.
2019-08-26Remove unused `random.h`KOBAYASHI Shuji
2019-07-24Use `MRB_TT_ISTRUCT` for `Random` to reduce memory.Yukihiro "Matz" Matsumoto
When the size of Xorshift128 seed (`sizeof(uint32)*4`) is bigger than ISTRUCT_DATA_SIZE, `Random` uses Xorshift96 instead.
2019-07-22Switch random generator from Mersenne Twister to Xorshit128.Yukihiro "Matz" Matsumoto
Now `rand` can be used with `MRB_WITHOUT_FLOAT`; ref #4576
2019-07-14Error needed/conflicts configurationdearblue
The purpose is to clarify the error if there is a needed/conflicts configuration at compile time.
2018-11-19Remove implicit conversion using `to_int` method.Yukihiro "Matz" Matsumoto
The ISO standard does not include implicit type conversion using `to_int`. This implicit conversion often causes vulnerability. There will be no more attacks like #4120. In addition, we have added internal convenience method `__to_int` which does type check and conversion (from floats).
2018-09-07Clear terminated spacedearblue
2017-08-09Replaced tabs with spacesChristopher Aue
2017-07-27Embed small size array elements in the heap.Yukihiro "Matz" Matsumoto
It reduces the memory consumption and sometimes improve the performance as well. For example, the consumed memory size of `bench/bm_ao_render.rb` is reduced from 1.2GB to 1GB, and its total execution time become 18.795 sec from 22.229 sec.
2017-02-02Fetch arguments earlier to avoid a crash.Clayton Smith
2016-11-23Fix segfault in Array#sampleBouke van der Bijl
2016-09-28Removed trailing spacesNobuyoshi Nakada
2016-08-30mruby-random: fixed typosYukihiro "Matz" Matsumoto
2016-08-30mruby-random: add reporting URL since we modified the sourceYukihiro "Matz" Matsumoto
2016-08-08update copyright notice and license description for mt19937ar.[ch]Yukihiro "Matz" Matsumoto
despite the fact original authors agreed to distribute their work under MIT license, it does not mean mt19937ar.[ch] became the work of mruby developers. To clarify, we updated copyright and license notice of the source files.
2016-01-21mruby-random: fixed wrong fixnum conversionYukihiro "Matz" Matsumoto
2015-12-25rename include blockerYasuhiro Matsumoto
2015-11-27include changed from by quotes ("") to by brackets (<>); close #3032Yukihiro "Matz" Matsumoto
2014-09-12constify pointer from RARRAY_PTR to detect potential write barrier bugs.Yukihiro "Matz" Matsumoto
if you see compiler errors due to this commit, you'd better to use array-modifying functions, e.g. mrb_ary_set() or mrb_ary_push(), otherwise you might see nasty GC bugs in the future. if you are sure what you are doing, replace `RARRAY_PTR(ary)` by `mrb_ary_ptr(ary)->ptr`. but be warned.
2014-08-20Add API `mrb_data_init` to initialize `MRB_TT_DATA` tagged instance.take_cheeze
2014-07-12remove spaces after open parensYukihiro "Matz" Matsumoto
2014-06-25add a few const qualifierSanta Zhang
2014-05-10Pacify MSVC warnings for random.ckyab
2014-04-30remove trailing spacesNobuyoshi Nakada
2014-03-11don't use of anonymous unionstake_cheeze
2014-03-10set bit field for mrb_boolksss
2014-03-09add data_type check to mruby-randomYukihiro "Matz" Matsumoto
2014-03-09refactoring mruby-randomYukihiro "Matz" Matsumoto
2014-03-09implement Array#sample in mruby-random gemYukihiro "Matz" Matsumoto
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