diff options
Diffstat (limited to 'txr.1')
| -rw-r--r-- | txr.1 | 12 |
1 files changed, 3 insertions, 9 deletions
@@ -26205,15 +26205,9 @@ This situation with two or more supertypes is called The contrasting term is .IR "single inheritance" , denoting the situation when a structure has exactly one supertype. -The term -.IR "strict single inheritance" -refers to the situation when a structure has exactly one supertype; -its supertype has at most one supertype; and, recursively, any additional -indirect supertypes all have at most one supertype. -Note: \*(TX 228 and older versions permitted only single inheritance, -thus programs were restricted to strict single inheritance. -\*(TL's multiple-inheritance is a straightforward extension of its -single inheritance semantics. +\*(TL's struct types initially permitted only single inheritance. +Multiple inheritance support was introduced in version 229, as a +straightforward extension of single inheritance semantics. In the .code make-struct-type |