User Guide

  • 2022.0
  • 05/15/2022
  • Public Content

Missing Allocation

Occurs when an invalid pointer is passed to a deallocation function. The invalid address may point to a previously released heap block.
Code Location
Deallocation site
If present, represents the location and associated call stack from which the memory block referenced by the address was previously deallocated.
The previous deallocation makes all subsequent deallocation attempts invalid.
Invalid deallocation site
Represents the location and associated call stack attempting the deallocation.
C Example
char* pStr = (char*) malloc(20); free(pStr); free(pStr);
Fortran Example
integer, target :: b(100) integer, pointer :: pmiddle pmiddle => b(4) DEALLOCATE( pmiddle )
Possible Correction Strategies
Do This
A double deallocation occurs.
Remove the extraneous deallocation.
An invalid deallocation occurs.
Fix the pointer value passed to the deallocator.

Product and Performance Information


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