c++/6351: GCC dosn't compile a correct code.

c++/6351: GCC dosn't compile a correct code.

[comer]

>Number:         6351
>Category:       c++
>Synopsis:       GCC dosn't compile a correct code.
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          rejects-legal
>Submitter-Id:   net
>Arrival-Date:   Thu Apr 18 04:06:11 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     comer@mailru.com
>Release:        2.95.3-5 (cygwin-version)
>Organization:
>Environment:
Windows 2000
>Description:
enum_plus.cpp:9: enumerator value for `MY_MAX' not integer constant
enum_plus.cpp: In function `enum {anonymous} operator +<{anonymous enum}, int>(c
onst {anonymous enum} &, const int &)':
enum_plus.cpp:9:   instantiated from here
enum_plus.cpp:4: assignment of read-only reference `a'
>How-To-Repeat:
template<class TypeA, class TypeB>
TypeA operator+(const TypeA& a, const TypeB& b)
{
	return TypeA(a)+=b;
}

enum { MY_MIN = 0 };

enum { MY_MAX = MY_MIN+10 };

int main(void)
{
}

>Fix:
Change
   enum { MY_MAX = MY_MIN+10 };
to
   enum { MY_TMP = MY_MIN, MY_MAX = MY_TMP+10 };
>Release-Note:
>Audit-Trail:
>Unformatted:
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Re: c++/6351: GCC dosn't compile a correct code.

[nathan]

Synopsis: GCC dosn't compile a correct code.

State-Changed-From-To: open->closed
State-Changed-By: nathan
State-Changed-When: Fri Apr 26 07:49:39 2002
State-Changed-Why:
    the code is illformed, but the error wrong. g++ 3.0
    reports 
    nathan@manao:162>g++ -c 6351.ii 
    6351.ii:9: enumerator value for `MY_MAX' not integer constant
    6351.ii: In function `TypeA operator+(const TypeA&, const TypeB&) [with TypeA = 
       <anonymous enum>, TypeB = int]':
    6351.ii:9:   instantiated from here
    6351.ii:4: no match for `<anonymous enum>& += const int&' operator

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6351