#include <stdarg.h>
struct S
{
int f(int n) { return n; }
};
void f(int i, ...)
{
va_list ap;
va_start(ap, i);
va_arg(ap, S).f(0);
}
yields a bogus diagnostic and ICE with current mainline:
t2.cc: In function 'void f(int, ...)':
t2.cc:10: error: invalid lvalue in unary '&'
tree check: expected class 'type', have 'exceptional' (error_mark) in
pp_c_type_qualifier_list, at c-pretty-print.c:232
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
4.0 also gives a bogus diagnostic:
t2.cc: In function 'void f(int, ...)':
t2.cc:10: error: invalid lvalue in unary '&'
t2.cc:10: error: no matching function for call to 'S::f(int)'
t2.cc:4: note: candidates are: int S::f(int)
as does 3.4, while 3.3 compiles the test OK.
--
Summary: [3.4/4.0/4.1 Regression] Bogus "invalid lvalue in unary
'&'" diagnostic and ICE with va_arg
Product: gcc
Version: 4.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jsm28 at gcc dot gnu dot org
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23840
