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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_4@547 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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matz 1999-10-18 09:07:13 +00:00
parent a438c908aa
commit fd1fe9cf1d
1 changed files with 6 additions and 13 deletions
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19
array.c
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@ -943,26 +943,19 @@ rb_ary_delete_at(ary, at)
VALUE ary;
VALUE at;
{
long i1, i2, pos;
long i, pos = NUM2LONG(at), len = RARRAY(ary)->len;
VALUE del = Qnil;
rb_ary_modify(ary);
if (pos >= len) return Qnil;
if (pos < 0) pos += len;
if (pos < 0) return Qnil;
rb_ary_modify(ary);
pos = NUM2LONG(at);
for (i1 = i2 = 0; i1 < RARRAY(ary)->len; i1++) {
if (i1 == pos) {
del = RARRAY(ary)->ptr[i1];
continue;
}
if (i1 != i2) {
RARRAY(ary)->ptr[i2] = RARRAY(ary)->ptr[i1];
}
i2++;
del = RARRAY(ary)->ptr[pos];
for (i = pos + 1; i < len; i++, pos++) {
RARRAY(ary)->ptr[pos] = RARRAY(ary)->ptr[i];
}
RARRAY(ary)->len = i2;
RARRAY(ary)->len = pos;
return del;
}