[Bug c++/52817] New: g++ do not call a method with same name on some platforms(see small example source attached)

[nospamname at web dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52817

             Bug #: 52817
           Summary: g++ do not call a method with same name on some
                    platforms(see small example source attached)
    Classification: Unclassified
           Product: gcc
           Version: 4.5.5
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: nospamname@web.de


See below testprogram for C++.this give on X86 cygwin correct output and i
guess it work on some other platforms too
( this codestyle is used in dunelegacy game). All Compiler i test run on same
OS (windows - cygwin).Only Compiler Options that use. -Wall and -Wextra. But
they give no report on all compilers.

BTW: this is no April joke, i ask about Problem in GCC ML, and i get the answer
to write a Bugreport.



"""
Output from X86 cygwin build (this is ok)

constructor wsafile
readdata 1 called
readdata 2 called
12345678 ( should be 0x12345678) 1 (should be 1)
""""

But with all 68k compilers for amigaos (i test from GCC 3.4.0 to 4.5.x Version
and some between) this execute always wrong.readdata 1 Funtion
is never called and the transfer of the adrress fail

"""""
Output from all m68k amigaos g++ cygwin hostet (this is wrong)

constructor wsafile
readdata 2 called 
0 ( should be 0x12345678) 1 (should be 1)     
"""""

What can be the problem.I dont understand wy the backend can cause such a
problem. How is that possible

here is the test program

#include <stdarg.h>
#include <stdio.h>
class Wsafile
{
public:
    Wsafile(long* RWop);
    Wsafile(long* RWop0, long* RWop1);
    Wsafile(int num,...);
    virtual ~Wsafile();
private:
    void readdata(int NumFiles, ...);
    void readdata(int NumFiles, va_list args);
};

/// Constructor
/**
    The constructor reads from the RWop all data and saves them internal. The
SDL_RWops can be readonly but must support
    seeking. Immediately after the Wsafile-Object is constructed RWop can be
closed. All data is saved in the class.
    \param    RWop    SDL_RWops to the wsa-File. (can be readonly)
*/
Wsafile::Wsafile(long *RWop)
{
    printf("constructor wsafile\n");
    readdata(1,RWop);
}

/// Destructor

Wsafile::~Wsafile()
{
    printf("free reach\n");
}


void Wsafile::readdata(int NumFiles, ...) {
        printf("readdata 1 called \n");
        va_list args;
    va_start(args,NumFiles);
    readdata(NumFiles,args);
    va_end(args);

}

void Wsafile::readdata(int NumFiles, va_list args) {
     long * RWop;
     printf("readdata 2 called \n");
     RWop = va_arg(args,long *);
     printf ("%x ( should be 0x12345678) %d (should be 1) \n",(unsigned
int)RWop,NumFiles);  // should print 0x12345678
}

int
main()
{

  long * addr = ( long *)0x12345678;
  new Wsafile(addr);
}