From rdasilva@connecttel.com Tue Mar 30 13:34:47 1999
Date: Tue, 30 Mar 1999 12:37:43 -0600
From: Rosimildo DaSilva <rdasilva@connecttel.com>
To: joel@OARcorp.com
Subject: Re: C++ exceptions AND RTEMS 4.0.0

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From: joel@OARcorp.com <joel@OARcorp.com>
To: Rosimildo DaSilva <rdasilva@connecttel.com>
Date: Tuesday, March 30, 1999 7:43 AM
Subject: Re: C++ exceptions AND RTEMS 4.0.0


>
>
>Rosimildo, could you send me a test example of this built like 'hello
>world"?
>
>I would like to see if I can duplicate it on another target.  This would
>eliminate some possible problems.
>


Joel,

I have attached the main.cc form the examples (  tests\samples\cdtest ).
I have added a little try block to the module, and the program terminates
when the exception is raised.

Rosimildo.


/* cut
here -----------------------------------------------------------------------
---*/
/*
 *  This routine is the initialization task for this test program.
 *  It is called from init_exec and has the responsibility for creating
 *  and starting the tasks that make up the test.  If the time of day
 *  clock is required for the test, it should also be set to a known
 *  value by this function.
 *
 *  Input parameters:  NONE
 *
 *  Output parameters:  NONE
 *
 *  COPYRIGHT (c) 1994 by Division Incorporated
 *  Based in part on OAR works.
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.com/license/LICENSE.
 */

// #define RTEMS_TEST_IO_STREAM

#include <rtems.h>
#include <stdio.h>
#include <stdlib.h>
#ifdef RTEMS_TEST_IO_STREAM
#include <iostream.h>
#endif

extern "C" {
extern rtems_task main_task(rtems_task_argument);
}

static int num_inst = 0;

class A {
public:
    A(void)
    {
        num_inst++;
        printf(
          "Hey I'm in base class constructor number %d for %p.\n",
          num_inst,
          this
        );

 /*
  * Make sure we use some space
  */

        string = new char[50];
 sprintf(string, "Instantiation order %d", num_inst);
    };

    virtual ~A()
    {
        printf(
          "Hey I'm in base class destructor number %d for %p.\n",
          num_inst,
          this
        );
 print();
        num_inst--;
    };

    virtual void print()  { printf("%s\n", string); };

protected:
    char  *string;
};

class B : public A {
public:
    B(void)
    {
        num_inst++;
        printf(
          "Hey I'm in derived class constructor number %d for %p.\n",
          num_inst,
          this
        );

 /*
  * Make sure we use some space
  */

        string = new char[50];
 sprintf(string, "Instantiation order %d", num_inst);
    };

    ~B()
    {
        printf(
          "Hey I'm in derived class destructor number %d for %p.\n",
          num_inst,
          this
        );
       print();
        num_inst--;
    };

    void print()  { printf("Derived class - %s\n", string); }
};


A foo;
B foobar;

void
cdtest(void)
{
    A bar, blech, blah;
    B bleak;

#ifdef RTEMS_TEST_IO_STREAM
    cout << "Testing a C++ I/O stream" << endl;
#else
    printf("IO Stream not tested\n");
#endif

    bar = blech;

 printf( "before try block\n" );
 try
 {
    throw "Raising this";
 }
 catch( char *e)
 {
    printf( "Got it: %s\n", e );
 }
 printf( "catch got called, exception handling worked !!!\n" );
}

//
// main equivalent
//      It can not be called 'main' since the bsp owns that name
//      in many implementations in order to get global constructors
//      run.
//


rtems_task main_task(
  rtems_task_argument
)
{
    printf( "\n\n*** CONSTRUCTOR/DESTRUCTOR TEST ***\n" );

    cdtest();

    printf( "*** END OF CONSTRUCTOR/DESTRUCTOR TEST ***\n\n\n" );

    exit(0);
}

/*
end ------------------------------------------------------------------------
--*/