please help me on below issue and have no prior knowledge on memory corrpution issue

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We are creating two similar class objects.

Ex:

C++

Class A; // the class is having some pointer member variables.

A obj;
A obj1;

Obj: is constructed properly and member variables are pointing to valid addresses and values.
Obj1: during construction stage the member variables pointing to valid addresses and values once complete the construction the member variables are pointing to zunk values.

Please help me how to proceed further on this issue. I have no prior knowledge on memory corruption.

Posted 22-Nov-11 0:05am

dharmakiran

Updated 22-Nov-11 0:55am

Richard MacCutchan

v2

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Timberbird 22-Nov-11 6:10am

It is impossible to answer this question until you provide more info on class A - at least its fields and default constructor (and, possibly, base classes' constructors as well)

dharmakiran 22-Nov-11 8:47am

Thanks!

Could you please tell me the steps how to fix memory corruption related issues.

In my case due to memory corruption the behaviour of the object has changed instead of crashing.

I am very new to this. please

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OriginalGriff · Answer 1 · 2011-11-22T00:34:00

Solution 1

The normal problem with this kind of thing is that you create the pointers by referencing local variables - since these are created on the stack, they are not maintained once you leave the function. If you want them to persist, the you need to create them on the heap, using the new keyword, or the malloc function.

Posted 22-Nov-11 0:34am

OriginalGriff

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dharmakiran 22-Nov-11 8:57am

Thanks!

In my senario it will not help full.

is there any good tools to identify the memory corruption issues?

Could you please share me your exp on memory corruption?

I am very new to this...

OriginalGriff 22-Nov-11 9:37am

Best suggestion: put a breakpoint in the constructor, and single step through, looking at what your code is doing.
Sorry if that sounds vague, but I have no idea what your code looks like, so I can't be any more precise!