The memory could not be read

[haneeshkb]

Hi,
After successfull execution of my c++ exe there comes an error message like
'the instruction at 0x0034412c referenced memory at 0x3f92b818.The memory could not be read' . 3-4 times the message is coming after that only the exe will close. please help me ....

[r035198x]

Any chance that we will see what the code looks like?

[JosAH]

Hi,
After successfull execution of my c++ exe there comes an error message like
'the instruction at 0x0034412c referenced memory at 0x3f92b818.The memory could not be read' . 3-4 times the message is coming after that only the exe will close. please help me ....

That is Microsoft's way of telling you that your program caused a segmentation
violation, i.e. your program tries to read from a memory location that doesn't
belong to the programs address space. Normally speaking: a bug because a
pointer is pointing into la-la-land.

kind regards,

Jos

[haneeshkb]

Any chance that we will see what the code looks like?

This is a big project .. it is difficul to publish the code . The project consists of around 12-14 cpp files and around 20 more .h files .
Average lines per cpp file is around 4000 and average datasize per cpp file is 3000000.
what are the possible reasons making this problem?

[haneeshkb]

That is Microsoft's way of telling you that your program caused a segmentation
violation, i.e. your program tries to read from a memory location that doesn't
belong to the programs address space. Normally speaking: a bug because a
pointer is pointing into la-la-land.

kind regards,

Jos

thanks Jos...
Is there any way to find out where the memory problem happening in the code . Or is there any way to suppress the error message . any Garbage collector function available for c++.

[r035198x]

thanks Jos...
Is there any way to find out where the memory problem happening in the code . Or is there any way to suppress the error message . any Garbage collector function available for c++.

Perhaps you could debug it to find at which point the error is being thrown?

[JosAH]

Perhaps you could debug it to find at which point the error is being thrown?

The (fatal) error message even told the location of the instruction that caused
it: 0x34412c; all you need is a linker map and check which function that
instruction is in (another reason to keep your functions small ;-)

kind regards,

Jos

[weaknessforcats]

The (fatal) error message even told the location of the instruction that caused
it: 0x34412c; all you need is a linker map and check which function that
instruction is in (another reason to keep your functions small ;-)

True. But that may not be the cause of the error. It is likely somewhere else where the addresses are getting screwed up.

To the OP:
Have you used a product like BoundsChecker on this code?

[JosAH]

True. But that may not be the cause of the error. It is likely somewhere else where the addresses are getting screwed up.

Also true but at least you have a starting point so you can search 'upwards', i.e.
towards the callers of that function. There are indeed quite a few programs that
can do that for you.

kind regards,

Jos

[haneeshkb]

Perhaps you could debug it to find at which point the error is being thrown?

debugging is not giving me any errors . It is working fine till the last line of the code . This happens whle quitting the programe.In debug mode when returning to the main function we can see the programme is stepping into the following functions

template <class T,class Alloc> void TMListImp<T,Alloc>::DoFlush( int del )

2) template <class T,class Alloc>
TMListBlockInitializer<T,Alloc>::~TMListBlockIniti alizer()
these two functions are a part of c:\bc5\include\classlib\listimp.h

[haneeshkb]

The (fatal) error message even told the location of the instruction that caused
it: 0x34412c; all you need is a linker map and check which function that
instruction is in (another reason to keep your functions small ;-)

kind regards,

Jos

it would be very helpfull to me if you could expalin me how to do the linker map. I doesn't know anything regarding that. Can you please?

[JosAH]

it would be very helpfull to me if you could expalin me how to do the linker map. I doesn't know anything regarding that. Can you please?

It's been ages since I used that MS linker ... type "link /help" and see which
flag makes the linker produce a map file. If I remember well it's simply the "/map"
flag followed by a file name. When the linker is finished check the map for that
particular address and see in which function that instruction is located.
But of course the best thing is to RTFM.

kind regards,

Jos