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c++/1980: Error assigning const array
- To: gcc-gnats at gcc dot gnu dot org
- Subject: c++/1980: Error assigning const array
- From: 520065607613-0001 at t-online dot de
- Date: Wed, 14 Feb 2001 14:35:18 +0100
- Reply-To: fp at fpx dot de
>Number: 1980
>Category: c++
>Synopsis: Error assigning const array
>Confidential: no
>Severity: serious
>Priority: low
>Responsible: unassigned
>State: open
>Class: rejects-legal
>Submitter-Id: net
>Arrival-Date: Wed Feb 14 05:46:01 PST 2001
>Closed-Date:
>Last-Modified:
>Originator: Frank Pilhofer
>Release: 2.97 20010122 (experimental)
>Organization:
>Environment:
System: Linux rose 2.2.13 #1 Mon Nov 8 15:08:22 CET 1999 i586 unknown
Architecture: i586
host: i586-pc-linux-gnu
build: i586-pc-linux-gnu
target: i586-pc-linux-gnu
configured with: ../configure --prefix=/local/pkg/gcc/20010122 --with-gnu-as=/local/bin/as --with-gnu-ld=/local/bin/ld
>Description:
The following code does not compile, gcc says
test.cc: In method `S::S(const S &)':
test.cc:5: incompatible types in assignment of `const char[2]' to `char[2]'
>How-To-Repeat:
struct S {
char x[2];
S( const S &s )
{
x = s.x;
}
};
>Fix:
It works if constness is cast away, as in
struct S {
char x[2];
S( const S &s )
{
x = ((S&)s).x;
}
};
>Release-Note:
>Audit-Trail:
>Unformatted: