memory leak with a thrown exception

[rupert]

hello; does anybody know why i'd get a memory loss at this point?

 
#include <iostream>
 
 
int main(int argc, char *argv[]){
try {
throw 1;
}
catch(int) {
cout<<"Catch\n";
}
return EXIT_SUCCESS;
}
 
 

[Alf P. Steinbach]

* rupert:

hello; does anybody know why i'd get a memory loss at this point?

It happens to everybody. Just be honest about it.

#include <iostream>


int main(int argc, char *argv[]){
    try {
       throw 1;
    }
    catch(int) {
       cout<<"Catch\n";

 
Should not compile, should be
 
std::cout << "Catch\n";
 
To ensure that that output appears it would also be a good idea to do
 
std::cout << std::flush;
 
Which you can combine with the above by doing
 
std::cout << "Catch" << std::endl;
 
 
        
                    }
    return EXIT_SUCCESS;
 
 
This constant is not guaranteed to be available by including <iostream>.
 
 
        
                }

 
 
 

--
A: Because it messes up the order in which people normally read text.
Q: Why is it such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?

[rupert]

Sorry correction;

 
#include <map>
#include <iostream>
 
using std::cout;
 
int main(int argc, char *argv[])
{
try
{
throw 1;
}
catch(int)
{
cout<<"Catch\n";
//std::flush;
}
return 0;
}
 
 

sorry try again. seems even with std::flush i still get a memory leak

[Alf P. Steinbach]

* rupert:

Sorry correction;

#include <map>
#include <iostream>

using std::cout;

int main(int argc, char *argv[])
{
    try
    {
       throw 1;
    }
    catch(int)
    {
      cout<<"Catch\n";
     //std::flush;
    }
    return 0;
}

 

sorry try again. seems even with std::flush i still get a memory leak

It's unclear what you mean by "memory leak".

Do you mean that no output appears?

Try running the program from the command line (if you haven't).

--
A: Because it messes up the order in which people normally read text.
Q: Why is it such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?

[rupert]

Oh the program compiles and runs. however bcheck ./myProg displays one
occurance of a memory leak. and can't figure out why; when there's no
initialization of any "new" things nor pointers to dynamically
allocated objects, simply a "throw" confusing eh?....

[BobR]

Alf P. Steinbach wrote in message <4r************@mid.individual.net>...

>* rupert:

>Sorry correction;

#include <map>
#include <iostream>
using std::cout;

int main(int argc, char *argv[]){
    try{
       throw 1;
       }
    catch(int){
      cout<<"Catch\n";
     //std::flush;

 
OP: That should be 'std::cout<<std::flush;'.
 
        
                        
                >    }
    return 0;
}


 
 
 
 

>>
sorry try again. seems even with std::flush i still get a memory leak

It's unclear what you mean by "memory leak".

Fool, Alf! (<G>) Can't you see, it's right in front of you. He said, " **i**
still get a memory leak" [1]. Didn't say anything about the program!
(....or the std::map use.)

[1] - I get that all the time with CRS and Sometimers disease! (....in fact,
I think it's happening right now!)
--
Bob <GR
POVrookie

[BobR]

rupert wrote in message
<11**********************@m73g2000cwd.googlegroups .com>...

>Oh the program compiles and runs. however bcheck ./myProg displays one
occurance of a memory leak. and can't figure out why; when there's no
initialization of any "new" things nor pointers to dynamically
allocated objects, simply a "throw" confusing eh?....

May be a false positive. As soon as you throw, it exits the try{}
(immediately, does not finish it), and starts looking for a handler. Maybe
'bcheck' is keying off the missing closing brace (due to the throw).

Is there anything else in main()?

--
Bob R
POVrookie

[rupert]

Easy bob, my question to was unclear to Alf, who's the only person
helping me at the moment. It will teach me to be ask better questions.

[rupert]

Is there anything else in main()?
no that's it.

[Roland Pibinger]

On 7 Nov 2006 19:20:11 -0800, "rupert" wrote:

>Oh the program compiles and runs. however bcheck ./myProg displays one
occurance of a memory leak. and can't figure out why; when there's no
initialization of any "new" things nor pointers to dynamically
allocated objects, simply a "throw" confusing eh?....

The leak probably stems from iostreams. Try to leave out cout (don't
#include <iostream>).

Best wishes,
Roland Pibinger

[VJ]

rupert wrote:

Sorry correction;

#include <map>
#include <iostream>

using std::cout;

int main(int argc, char *argv[])
{
    try
    {
       throw 1;
    }
    catch(int)
    {
      cout<<"Catch\n";
     //std::flush;
    }
    return 0;
}

 

sorry try again. seems even with std::flush i still get a memory leak

It might be a false report in your memory leak check program. I
encountered such using valgrind in various cases (one case was a memory
leak report when an exception throws)