Inefficient and Unnecessary Conversions or Copies

Rule ID:

unnecessary_conversion

Severity:

low

Automated detection:

unavailable

Inefficient and unnecessary conversions occur when a type is converted only to use a specific kind of API, not because the new representation is actually needed. Worse, code sometimes converts the value back after using the API, causing unnecessary allocations and copies.

Mechanical Detection

The scanner does not detect general conversion and copying inefficiencies. The narrower Unnecessary Unit Conversions and Unnecessary Type Construction rules cover known mechanical forms.