2121b6e689
Stirs internal state when seed is set in Random
...
This is to avoid the approximation of `Random#rand` when `seed`s are close together.
For example, the first `#rand` values after doing `Random#srand(0)` and `Random#srand(1)` are very similar.
Below is the sequence of mruby before this patch was given a `seed` of `0...20`:
```console
% bin/mruby -e 'r = Random.new; 20.times { |i| r.srand(i); puts "seed=%2d %s" % [i, 10.times.map { "%0.3f" % r.rand }.join(" ")] }'
seed= 0 0.643 0.585 0.198 0.732 0.087 0.605 0.548 0.468 0.573 0.966
seed= 1 0.643 0.585 0.198 0.607 0.370 0.605 0.633 0.593 0.395 0.439
seed= 2 0.643 0.585 0.197 0.981 0.652 0.730 0.875 0.713 0.529 0.269
seed= 3 0.643 0.585 0.198 0.857 0.934 0.730 0.960 0.216 0.286 0.523
seed= 4 0.643 0.585 0.197 0.231 0.217 0.605 0.959 0.958 0.478 0.482
seed= 5 0.643 0.585 0.197 0.106 0.249 0.605 0.044 0.330 0.925 0.047
seed= 6 0.643 0.585 0.197 0.481 0.781 0.731 0.285 0.960 0.804 0.725
seed= 7 0.643 0.585 0.197 0.356 0.813 0.731 0.370 0.711 0.937 0.448
seed= 8 0.643 0.585 0.198 0.732 0.329 0.108 0.243 0.974 0.766 0.936
seed= 9 0.643 0.585 0.198 0.607 0.611 0.108 0.827 0.102 0.962 0.597
seed=10 0.643 0.585 0.198 0.981 0.393 0.233 0.569 0.723 0.472 0.805
seed=11 0.643 0.585 0.198 0.857 0.676 0.233 0.154 0.222 0.603 0.371
seed=12 0.643 0.585 0.198 0.231 0.458 0.108 0.654 0.979 0.928 0.577
seed=13 0.643 0.585 0.198 0.106 0.490 0.108 0.239 0.355 0.749 0.831
seed=14 0.643 0.585 0.198 0.481 0.523 0.233 0.981 0.486 0.505 0.131
seed=15 0.643 0.585 0.198 0.356 0.555 0.234 0.565 0.233 0.011 0.666
seed=16 0.643 0.585 0.197 0.730 0.573 0.611 0.904 0.512 0.971 0.153
seed=17 0.643 0.585 0.197 0.605 0.855 0.611 0.240 0.636 0.041 0.509
seed=18 0.643 0.585 0.196 0.979 0.137 0.736 0.229 0.765 0.674 0.832
seed=19 0.643 0.585 0.197 0.855 0.420 0.736 0.566 0.268 0.183 0.219
```
2021-08-21 15:37:12 +09:00
3b4c4caddc
mruby-test/driver.c: change FLOAT_TOLERANCE bigger for inline floats.
2021-08-21 15:25:59 +09:00
20635e6bdc
debug.c: export integer compressing functions.
...
- mrb_packed_int_len()
- mrb_packed_int_encode()
- mrb_packed_int_decode()
2021-08-18 17:18:04 +09:00
80cf293bf6
pack.c: rename pack/unpack functions for readability.
2021-08-17 13:04:11 +09:00
57b347088d
fixup! pack.c: reduce dispatch in pack_unpack().
2021-08-17 13:04:06 +09:00
4385590d31
pack.c: reduce dispatch in pack_unpack().
2021-08-17 12:52:56 +09:00
bfe2bd4960
pack.c: fix M packing bug.
2021-08-16 10:56:44 +09:00
40c4c5d344
random.c: use I specifier for mrb_get_args(); ref #5530
2021-08-14 15:28:38 +09:00
8e5e96239c
pack.c: fixed a overwriting bug in pack_w and pack_M.
2021-08-14 14:58:09 +09:00
01da5e1392
Check the class with I specifier of mrb_get_args()
...
Previously, the `I` specifier only checked if the object was `MRB_TT_ISTRUCT`.
So it was at risk of getting pointers to different C structs if multiple classes were to use the `MRB_TT_ISTRUCT` instance.
Change this behavior and change the C argument corresponding to the `I` specifier to `(void *, struct RClass)`.
This change is not compatible with the previous mruby.
Please note that if the user uses the previous specifications, `SIGSEGV` may occur or the machine stack may be destroyed.
resolve #5527
2021-08-13 15:04:19 +09:00
9e74aad43c
codegen.c: fixed a bug in mrb_decode_insn().
2021-08-13 12:38:10 +09:00
7907c184be
codegen.c: add a comment that notice rewind_pc calling convention.
...
`rewind_pc` should not be called when `s->pc` is `0` (top).
2021-08-13 10:11:36 +09:00
9c3d305530
codegen.c: refactor mrb_last_insn().
...
Last commit made `mrb_decode_insn()` to take `NULL` as `pc`.
2021-08-13 10:10:17 +09:00
cbdc4f2c5c
codegen.c: mrb_prev_pc can return NULL at the top of iseq.
2021-08-13 10:02:01 +09:00
013365498d
test/eval.c: add test for #5528
2021-08-12 11:57:56 +09:00
e1b170160b
codegen.c: avoid signedness warning of int comparison.
2021-08-11 16:10:32 +09:00
a85f2299c0
codegen.c: avoid cross initialization of mrb_insn_data.
2021-08-11 16:09:51 +09:00
b1b9b157f8
codegen.c: more peephole optimization.
...
`a=10; a+=1` to generate:
```
1 000 OP_LOADI R1 11 ; R1:a
```
instead of:
```
1 000 OP_LOADI R1 10 ; R1:a
1 003 OP_MOVE R2 R1 ; R1:a
1 006 OP_ADDI R2 1
1 009 OP_MOVE R1 R2 ; R1:a
```
2021-08-11 10:48:18 +09:00
18ef4e35f3
Fixed compilation error of "mruby-pack" with MRB_NO_STDIO
2021-08-07 14:29:55 +09:00
06f49b3f84
codegen.c: need to push the value when the loop was eliminated.
2021-08-07 12:11:38 +09:00
46a1c40fe3
numeric_ext.c: fix a bug regarding MRB_INT_MIN.
2021-08-06 11:16:12 +09:00
37dbb91b96
codegen.c: -9223372036854775808 % -1 overflows 64 bit integer.
2021-08-06 10:35:06 +09:00
7ecc16f97a
codegen.c: remove code duplication from NODE_ARRAY.
2021-08-05 16:59:32 +09:00
9cb44f5ae3
codegen.c: detect integer overflow in division.
...
`MRB_INT_MIN / -1` overflows.
2021-08-04 12:25:14 +09:00
caaa07f2da
codegen.c: check zero division before constant folding.
2021-08-03 16:43:50 +09:00
c480ac4457
numeric_ext.c: modulo and remainder should handle infinite argument.
2021-08-03 16:35:31 +09:00
e75572af6a
numeric_ext.c: add Float#modulo and #remainder methods.
2021-08-03 16:30:47 +09:00
f4afcbef67
numeric_ext.c: update Integer#remainder method.
...
- need to detect zero division error
- support floating point number argument (as `%`)
2021-08-03 16:28:11 +09:00
2092bc7fe8
codegen.c: avoid division by zero in constant folding.
2021-08-03 15:57:01 +09:00
fad47a98a7
numeric_ext.c: use mrb_integer instead of mrb_as_int.
...
`mrb_as_int` implicitly converts the value into the integer, but those
methods are defined for Integer class so that the value should always be
integers.
2021-08-03 13:15:34 +09:00
df6ef39d1c
numeric_ext.c: define modulo and remainder methods for Integer.
2021-08-03 13:13:42 +09:00
019b006ee5
numeric_ext.c: remove unnecessary prefix mrb_ from static functions.
2021-08-03 10:33:04 +09:00
4fa24e4ff9
codegen.c: allow constant folding for negative integer modulo.
2021-08-02 16:48:16 +09:00
504d05232d
mrdb.c: do not skip OP_JMP on step execution.
2021-08-02 16:19:08 +09:00
e93642d53f
codegen.c: refactor readint() to read MRB_INT_MIN.
2021-08-02 14:10:38 +09:00
a5ac9c8790
test/driver.c: remove unused constants related to FIXNUM.
2021-08-02 08:56:38 +09:00
9902ab50fc
codegen.c: fix a bug in bit shift constant folding.
2021-08-02 08:53:50 +09:00
907df715ef
codegen.c: refactor unary operator optimization.
2021-08-02 08:51:39 +09:00
188c150f44
codegen.c: constant folding binary operators, <<, >>, %, &, |, ^.
2021-08-02 07:34:54 +09:00
1315e8751e
codegen.c: eliminate loop if condition is constant.
...
For example, `while false; ...; end` should be removed.
2021-08-01 20:33:41 +09:00
9dc801a798
codegen.c: peephole optimize OP_JMPxxx.
2021-08-01 20:31:19 +09:00
b1cb6c3c69
codegen.c: allow constant folding for mul / div.
2021-07-31 21:14:54 +09:00
43999492a7
codegen.c: mrb_prev_pc() to take previous instruction position.
...
It rescans `s->iseq` so that peephole optimizer can take multiple
previous instructions for constant folding, etc.
2021-07-31 21:11:36 +09:00
517071e3fa
codegen.c: order instructions in natural order for loops.
...
`while` and `until` generates in `cond` `jmpif` `body` `jmp` order.
It used to be in `jmp` `body` `cond` `jmpif` order.
2021-07-29 17:38:18 +09:00
64358c09d9
codegen.c: labels should be uint32_t.
2021-07-28 23:08:58 +09:00
adfd29c1b0
codegen.c: fix loopinfo structure members.
...
- `pc0`: `next` destination
- `pc1`: `redo` destination (renamed from `pc2`)
- `pc3`: `break` destination (renamed from `pc3`)
old `pc1` was unused so removed.
2021-07-28 23:08:58 +09:00
e81d497155
codegen.c: removed bytecode when the value of while is not used.
2021-07-28 23:08:58 +09:00
2910af0010
codegen.c: fixed a bug when value is taken from while and until.
...
```ruby
p ((while true; p 1; break; end))
```
should print `1 nil` but was `1`.
2021-07-28 23:08:57 +09:00
1f1dca1746
parse.y: fix an integer cast warning.
2021-07-26 11:46:22 +09:00
984161e6bb
parse.y: mrb_int_read() returns mrb_int not unsigned long.
...
Also, now too big capture group index just gives `nil`, not error.
2021-07-26 11:20:59 +09:00
dearblue