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range.c: check_step_domain

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* range.c (check_step_domain): check step argument domain by <=>
  method, instead of < and >.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55745 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2016-07-25 12:33:15 +00:00
parent e73b32199d
commit 706534b5f5
2 changed files with 25 additions and 19 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Mon Jul 25 21:33:13 2016 Nobuyoshi Nakada <nobu@ruby-lang.org>
* range.c (check_step_domain): check step argument domain by <=>
method, instead of < and >.
Mon Jul 25 21:11:32 2016 Kazuhiro NISHIYAMA <zn@mbf.nifty.com>
* doc/maintainers.rdoc: fix filenames.

39
range.c
View file

@ -333,22 +333,31 @@ linear_object_p(VALUE obj)
return FALSE;
}
static VALUE
check_step_domain(VALUE step)
{
VALUE zero = INT2FIX(0);
int cmp;
if (!rb_obj_is_kind_of(step, rb_cNumeric)) {
step = rb_to_int(step);
}
cmp = rb_cmpint(rb_funcallv(step, idCmp, 1, &zero), step, zero);
if (cmp < 0) {
rb_raise(rb_eArgError, "step can't be negative");
}
else if (cmp == 0) {
rb_raise(rb_eArgError, "step can't be 0");
}
return step;
}
static VALUE
range_step_size(VALUE range, VALUE args, VALUE eobj)
{
VALUE b = RANGE_BEG(range), e = RANGE_END(range);
VALUE step = INT2FIX(1);
if (args) {
step = RARRAY_AREF(args, 0);
if (!rb_obj_is_kind_of(step, rb_cNumeric)) {
step = rb_to_int(step);
}
}
if (rb_funcall(step, '<', 1, INT2FIX(0))) {
rb_raise(rb_eArgError, "step can't be negative");
}
else if (!rb_funcall(step, '>', 1, INT2FIX(0))) {
rb_raise(rb_eArgError, "step can't be 0");
step = check_step_domain(RARRAY_AREF(args, 0));
}
if (rb_obj_is_kind_of(b, rb_cNumeric) && rb_obj_is_kind_of(e, rb_cNumeric)) {
@ -405,15 +414,7 @@ range_step(int argc, VALUE *argv, VALUE range)
}
else {
rb_scan_args(argc, argv, "01", &step);
if (!rb_obj_is_kind_of(step, rb_cNumeric)) {
step = rb_to_int(step);
}
if (rb_funcall(step, '<', 1, INT2FIX(0))) {
rb_raise(rb_eArgError, "step can't be negative");
}
else if (!rb_funcall(step, '>', 1, INT2FIX(0))) {
rb_raise(rb_eArgError, "step can't be 0");
}
step = check_step_domain(step);
}
if (FIXNUM_P(b) && FIXNUM_P(e) && FIXNUM_P(step)) { /* fixnums are special */