Struct/enum tag namespace bug in gcc

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Article #5972

#5972

From: Tim Wadsworth
Date: Fri, 17 Jan 1997 00:00

28 lines
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According to the ANSI C standard, 6.1.2.3, tags of structures, unions
and enumerations belong to the same namespace.

Thus, the following program should not compile, because tag XXX
is redefined:

====================
struct XXX {
  int member;
};
 
enum XXX {
  enum_value1, enum_value2
};
 
main () {
}
====================

It does compile, however, under gcc 2.7.2, whether -ansi is
specified or not.

The redefinition is detected correctly by the sunpro compiler, and
gcc itself does detect it if the enum is encountered before the
struct - ie. it is order dependent!

Tim.

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From: Tim.Wadsworth@cambridge.simoco.com (Tim Wadsworth)
Subject: Struct/enum tag namespace bug in gcc
Date: 1997/01/17
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