diff options
Diffstat (limited to 'array.c')
| -rw-r--r-- | array.c | 8 |
1 files changed, 8 insertions, 0 deletions
@@ -2436,6 +2436,9 @@ sort_2(const void *ap, const void *bp, void *dummy) * an integer less than 0 when +b+ follows +a+, +0+ when +a+ and +b+ * are equivalent, or an integer greater than 0 when +a+ follows +b+. * + * The result is not guaranteed as stable. When comparison of two + * elements returns +0+, the order of the elements is unpredictable. + * * See also Enumerable#sort_by. * * a = [ "d", "a", "e", "c", "b" ] @@ -2517,6 +2520,8 @@ rb_ary_sort_bang(VALUE ary) * an integer less than 0 when +b+ follows +a+, +0+ when +a+ and +b+ * are equivalent, or an integer greater than 0 when +a+ follows +b+. * + * The result is not guaranteed as stable. When comparison of two + * elements returns +0+, the order of the elements is unpredictable. * * See also Enumerable#sort_by. * @@ -2674,6 +2679,9 @@ sort_by_i(RB_BLOCK_CALL_FUNC_ARGLIST(i, dummy)) * Sorts +self+ in place using a set of keys generated by mapping the * values in +self+ through the given block. * + * The result is not guaranteed as stable. When two keys are equal, + * the order of the corresponding elements is unpredictable. + * * If no block is given, an Enumerator is returned instead. * */ |