c++ - what is the meaning of **ptr in c -

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• in c, variable declaration 2 asterisks (**) mean? 5 answers

i know *ptr pointer variable called ptr

does **ptr mean pointer pointer?

if true, meaning of pointer pointer?

any pointers (pun intended) appreciated.

it depends on context.

in declaration, x **ptr declares object pointer pointer x.

outside of declaration, **ptr dereferences both pointers, yielding value.

remember pointer object holds address of object. pointer pointer that: object holds address of object, happens pointer.