how to resolve g++ warning with -std=c++11: ‘auto_ptr’ is deprecated

Question

Trying out -std=c++11 with the g++ compiler, I got lots of

warning: ‘auto_ptr’ is deprecated (declared at 
/usr/include/c++/4.8/backward/auto_ptr.h:87) [-Wdeprecated-declarations]

What should I use instead of auto_ptr? Please give an informative link or a complete answer.

https://gcc.gnu.org/onlinedocs/gcc/Diagnostic-Pragmas.html i.e. you can use #pragma GCC diagnostic warning "-Wdeprecated-declarations" — Konstantin Burlachenko, Dec 02 '17 at 00:48

score 4 · Accepted Answer · answered Apr 25 '15 at 13:15

4

You may use std::unique_ptr instead of std::auto_ptr

And if you copied auto_ptr, you have to std::move the unique_ptr.

answered Apr 25 '15 at 13:15

Jarod42

score 2 · Answer 2 · answered Apr 25 '15 at 13:15

2

"What should I use instead of auto_ptr?"

The class representing std::auto_ptr<>'s behavior most closely is std::unique_ptr<>.

answered Apr 25 '15 at 13:15

2 Answers2