This issue has been automatically converted from the original issue lists and some formatting may not have been preserved.
Authors: Ron Guilmette, WG14
Date: 1993-12-03
Submitted against: C90
Status: Closed
Cross-references: 0013.03
Converted from: dr.htm, dr_127.html
ANSI/ISO C Defect Report #rfg34:
Subject: Composite type of an enumerated type and an integral type.
Given the declarations:
enum E { red, green, blue } object;
int object;
and given an implementation for which the type int is considered to be
compatible with the type enum E, what is the composite type of object at the
end of the translation unit which contains the above declarations?
Background:
Subclause 6.5.2.2 says:
Each enumerated type shall be compatible with an integer type; the choice of type implementation-defined.
Subclause 6.1.2.6 says:
A composite type can be constructed from two types that are compatible; ...
For an identifier with external or internal linkage declared in the same scope as another declaration for that identifier, the type of the identifier becomes the composite type.
Comment from WG14 on 1997-09-23:
See Defect Report #013, Question 3. There is no requirement that the composite type be unique, and either of the types could be chosen as the composite type.