Bounds Checking
Bounds checking is a compiler-based technique that adds run-time bounds information for each allocated block of memory, and checks all pointers against those at run-time. For C and C++, bounds checking can be performed at pointer calculation time or at dereference time.
Implementations of this approach use either a central repository, which describes each allocated block of memory, or fat pointers, which contain both the pointer and additional data, describing the region that they point to.
Read more about this topic: Buffer Overflow Protection
Famous quotes containing the word bounds:
“Firmness yclept in heroes, kings and seamen,
That is, when they succeed; but greatly blamed
As obstinacy, both in men and women,
Whene’er their triumph pales, or star is tamed —
And ‘twill perplex the casuist in morality
To fix the due bounds of this dangerous quality.”
—George Gordon Noel Byron (1788–1824)