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C++: Add a warning on HeuristicAllocationExpr.getSizeBytes() and similar methods.

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This commit is contained in:
Geoffrey White
2023-01-05 12:30:22 +00:00
parent 823c767aac
commit c160e0b2a4
1 changed files with 4 additions and 2 deletions
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6
cpp/ql/lib/semmle/code/cpp/models/interfaces/Allocation.qll
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@@ -133,13 +133,15 @@ abstract class HeuristicAllocationExpr extends Expr {
/**
* Gets a constant multiplier for the allocation size given by `getSizeExpr`,
* in bytes.
* in bytes. This predicate should be used with caution as it can be
* inaccurate for allocations identified using heuristics.
*/
int getSizeMult() { none() }
/**
* Gets the size of this allocation in bytes, if it is a fixed size and that
* size can be determined.
* size can be determined. This predicate should be used with caution as it
* can be inaccurate for allocations identified using heuristics.
*/
int getSizeBytes() { none() }