Recent changes to Structures versus classes

Structures versus classes modified by Will Pittenger

Will Pittenger — Sun, 16 Feb 2014 09:41:39 -0000

Structures versus Classes modified by Will Pittenger

Will Pittenger — Fri, 14 Feb 2014 04:20:56 -0000

--- v1
+++ v2
@@ -3,6 +3,6 @@
 Feature | Structures | Classes
 --------|------------|--------
 Inheritance | Structures can inherit any type other than classes besides Object | Classes can inherit any type
-By reference versus by value | Instances of structures are normally by value; to get a By Reference location, use the [**&**] type modification operator | Instances of classes are normally stored in references; to get a By Value location, use the [**|>**] type modification operator
+By reference versus by value | Instances of structures are normally by value; to get a By Reference location, use the **[ref](keywords-ref)** type modification operator | Instances of classes are normally stored in references; to get a By Value location, use the **[byvalue](keywords-byvalue)** type modification operator
 Interface implementation | Structures can't themselves implement interfaces | Classes can implement interfaces as needed
-Bitfields and unions | Structures can use these as needed | Classes may not declare bitfields or unions; to do that, drive from a structure that does it for you
+Bitfields and unions | Structures can use these as needed | Classes may not declare bitfields or unions; to do that, drive from a structure that does it for you; Classes can, however, use a typed union

Structures versus Classes modified by Will Pittenger

Will Pittenger — Sun, 09 Feb 2014 04:06:44 -0000

Classes and structures different in several subtle and not so subtle ways.

Feature	Structures	Classes
Inheritance	Structures can inherit any type other than classes besides Object	Classes can inherit any type
By reference versus by value	Instances of structures are normally by value; to get a By Reference location, use the [&] type modification operator	Instances of classes are normally stored in references; to get a By Value location, use the [\|>] type modification operator
Interface implementation	Structures can't themselves implement interfaces	Classes can implement interfaces as needed
Bitfields and unions	Structures can use these as needed	Classes may not declare bitfields or unions; to do that, drive from a structure that does it for you