Unreference shared_ptr

Question

I know 2 ways:

// Declared somewhere but not on stack
shared_ptr<X> xptr = make_shared<X>();

xptr = nullptr;  //#1
xptr.reset();  //#2

As for me #1 looks better, but what is better from the point of C++

eerorika · Accepted Answer · 2016-12-17 13:27:03Z

1

Neither is objectively better. In almost every case, the difference is purely aesthetic.

The only exception that I can think of is writing a generic function template that works with both smart, and bare pointers. only ptr = nullptr is valid syntax for bare pointers.

The assignment and reset member function differ in behaviour only when the pointer is not null.

edited Dec 17, 2016 at 13:27

answered Dec 17, 2016 at 10:47

eerorika

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