/**
* Attempts to acquire for a given number of milliseconds. If
- * acquisition is unsuccessful, the returned LockedPtr is NULL.
+ * acquisition is unsuccessful, the returned LockedPtr is nullptr.
*
* NOTE: This API is deprecated. Use lock(), wlock(), or rlock() instead.
* In the future it will be marked with a deprecation attribute to emit
/**
* Attempts to acquire for a given number of milliseconds. If
- * acquisition is unsuccessful, the returned ConstLockedPtr is NULL.
+ * acquisition is unsuccessful, the returned ConstLockedPtr is nullptr.
*
* NOTE: This API is deprecated. Use lock(), wlock(), or rlock() instead.
* In the future it will be marked with a deprecation attribute to emit