diff options
| -rw-r--r-- | src/array.c | 4 | ||||
| -rw-r--r-- | test/t/array.rb | 5 |
2 files changed, 9 insertions, 0 deletions
diff --git a/src/array.c b/src/array.c index febc3a7a8..7e9c0139d 100644 --- a/src/array.c +++ b/src/array.c @@ -561,6 +561,10 @@ mrb_ary_splice(mrb_state *mrb, mrb_value ary, mrb_int head, mrb_int len, mrb_val mrb_int i, argc; ary_modify(mrb, a); + + /* len check */ + if (len < 0) mrb_raisef(mrb, E_INDEX_ERROR, "negative length (%S)", mrb_fixnum_value(len)); + /* range check */ if (head < 0) { head += a->len; diff --git a/test/t/array.rb b/test/t/array.rb index 48f2fe0c4..56daf0b01 100644 --- a/test/t/array.rb +++ b/test/t/array.rb @@ -66,6 +66,11 @@ assert('Array#[]=', '15.2.12.5.5') do # this will cause an exception due to the wrong arguments a.[]=(1,2,3,4) end + assert_raise(IndexError) do + # this will cause an exception due to the wrong arguments + a = [1,2,3,4,5] + a[1, -1] = 10 + end assert_equal(4, [1,2,3].[]=(1,4)) assert_equal(3, [1,2,3].[]=(1,2,3)) |