This problem originates in peren_c++. The test (Sec13/3_1_3/P13290.C)
exercising the following clause: ISO/IEC 14882:1998, 13.3.1.3.
(When a user-defined conversion is invoked to convert an
assignment-expression to a type cv T, where T is a class type,
a constructor of T is considered a candidate function by
overload resolution.)
Simplified test case is:
#include <stdio.h>
int counter = 0;
struct S {
int m;
S(int i=0) : m(i) { counter++; }
};
main(){
counter = 0;
S s00 = 1;
fprintf(stderr,"counter = (%d)\n",counter);
counter = 0;
volatile S s02 = 1;
fprintf(stderr,"volatile counter = (%d)\n",counter);
}
to compile: g++ P13290_short.C
The error massage is:
P13290_short.C: In function ?int main()?:
P13290_short.C:23: error: no matching function for call to ?S::S(volatile S)?
P13290_short.C:9: note: candidates are: S::S(int)
P13290_short.C:6: note: S::S(const S&)
It will also fail for "const volatile S s02 = 1;"
It is passing with 3.4.6 but fails on 4.3.2 and 4.4.0. The 4.4.0 platform is
plain vanilla x86 (x86_64-unknown-linux-gnu). I got it just to verify the issue
so you can refer to a supported platform. Thanks.
--
Summary: Fail to use constructor to initialize volatile
declaration (no matching function for call)
Product: gcc
Version: 4.3.2
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: sergei_lus at yahoo dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39982
