Is 'delete [] NULL ;' safe ?

[qazmlp]

Say, ptr=0 / ptr=NULL.

delete ptr; //is safe

// Is
delete [ ] ptr; // also safe ?

 

[Jakob Bieling]

Say, ptr=0 / ptr=NULL.

delete ptr; //is safe

// Is
delete [ ] ptr; // also safe ?

Yes.

 

[Alf P. Steinbach]

Say, ptr=0 / ptr=NULL.

delete ptr; //is safe

// Is
delete [ ] ptr; // also safe ?

delete or delete[] of 0 is safe.

NULL may or may not be safe depending on the definition; if it is
the standard NULL from e.g. [cstddef] then yes, that's also safe.