images\error_sml.gifIPW: Invalid Pointer Write (Error Detection)

Example       Related Topics

An IPW message indicates that the program is about to write to memory that is not a valid, addressable memory region.

For example, this message can occur when you access an address that:

§           Does not exist in the address space

§           Is within the red zone of a previously-freed block of memory

§           Is within the first 64K of the address space

§           Is within memory Purify owns

§           Is uncommitted virtual memory

The addressable regions include:

§           Program code and data sections

§           The stack for each valid thread

§           Any heaps

§           Any VirtualAlloc or MapViewOfFile space

§           The thread local data storage

(C) Copyright IBM Corporation 1992, 2010.