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authorakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2016-04-30 03:27:20 (GMT)
committerakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2016-04-30 03:27:20 (GMT)
commit10fb4e151d4b053c1adf2363b278ec37a49497da (patch)
treeabf8125cceee78d483ee2f2186041ab8feac35bc /numeric.c
parentb296cacb123cd0bbf9ca1efae66f1fcb7c1caae0 (diff)
{Fixnum,Bignum}#~ is unified into Integer.
* numeric.c (int_comp): {Fixnum,Bignum}#~ is unified into Integer. * bignum.c (rb_big_neg): Don't define Bignum#~. * internal.h (rb_big_neg): Declared. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54829 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'numeric.c')
-rw-r--r--numeric.c26
1 files changed, 23 insertions, 3 deletions
diff --git a/numeric.c b/numeric.c
index 948cba9..6cd0d45 100644
--- a/numeric.c
+++ b/numeric.c
@@ -3854,11 +3854,19 @@ fix_le(VALUE x, VALUE y)
}
/*
- * Document-method: Fixnum#~
+ * Document-method: Integer#~
* call-seq:
- * ~fix -> integer
+ * ~integer -> integer
*
* One's complement: returns a number where each bit is flipped.
+ *
+ * Inverts the bits in a integer. As Integers are conceptually infinite
+ * length, the result acts as if it had an infinite number of one
+ * bits to the left. In hex representations, this is displayed
+ * as two periods to the left of the digits.
+ *
+ * sprintf("%X", ~0x1122334455) #=> "..FEEDDCCBBAA"
+ *
*/
static VALUE
@@ -3867,6 +3875,18 @@ fix_rev(VALUE num)
return ~num | FIXNUM_FLAG;
}
+static VALUE
+int_comp(VALUE num)
+{
+ if (FIXNUM_P(num)) {
+ return fix_rev(num);
+ }
+ else if (RB_TYPE_P(num, T_BIGNUM)) {
+ return rb_big_neg(num);
+ }
+ return Qnil;
+}
+
static int
bit_coerce(VALUE *x, VALUE *y)
{
@@ -4791,7 +4811,7 @@ Init_Numeric(void)
rb_define_method(rb_cFixnum, "<", fix_lt, 1);
rb_define_method(rb_cFixnum, "<=", fix_le, 1);
- rb_define_method(rb_cFixnum, "~", fix_rev, 0);
+ rb_define_method(rb_cInteger, "~", int_comp, 0);
rb_define_method(rb_cInteger, "&", int_and, 1);
rb_define_method(rb_cInteger, "|", int_or, 1);
rb_define_method(rb_cInteger, "^", int_xor, 1);