JSF-AV-Rules

AV Rule 117
Arguments should be passed by reference if NULL values are not possible:

AV Rule 117.1 An object should be passed as const T& if the function should not change the value of the object.

AV Rule 117.2 An object should be passed as T& if the function may change the value of the object.

Rationale: Since references cannot be NULL, checks for NULL values will be eliminated from the code. Furthermore, references offer a more convenient notation than pointers.

AV Rule 118
Arguments should be passed via pointers if NULL values are possible:

AV Rule 118.1 An object should be passed as const T* if its value should not be modified.

AV Rule 118.2 An object should be passed as T* if its value may be modified.

Rationale: References cannot be NULL.  回复  更多评论