diff options
| -rw-r--r-- | src/array.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/src/array.c b/src/array.c index 187a8404d..eaead08b3 100644 --- a/src/array.c +++ b/src/array.c @@ -317,7 +317,16 @@ mrb_ary_reverse_bang(mrb_state *mrb, mrb_value self) struct RArray *a = mrb_ary_ptr(self); if (a->len > 1) { - ary_reverse(a); + mrb_value *p1, *p2; + + p1 = a->buf; + p2 = a->buf + a->len - 1; + + while(p1 < p2) { + mrb_value tmp = *p1; + *p1++ = *p2; + *p2-- = tmp; + } } return self; } @@ -325,13 +334,21 @@ mrb_ary_reverse_bang(mrb_state *mrb, mrb_value self) mrb_value mrb_ary_reverse(mrb_state *mrb, mrb_value self) { - struct RArray *a = mrb_ary_ptr(self); + struct RArray *a = mrb_ary_ptr(self), *b; mrb_value ary; ary = mrb_ary_new_capa(mrb, a->len); + b = mrb_ary_ptr(ary); if (a->len > 0) { - mrb_ary_replace(mrb, mrb_ary_ptr(ary), a->buf, a->len); - ary_reverse(mrb_ary_ptr(ary)); + mrb_value *p1, *p2, *e; + + p1 = a->buf; + e = p1 + a->len; + p2 = b->buf + a->len - 1; + while(p1 < e) { + *p2-- = *p1++; + } + b->len = a->len; } return ary; } |