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https://issues.apache.org/jira/browse/IGNITE-9161?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16605553#comment-16605553
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Taras Ledkov commented on IGNITE-9161:
--------------------------------------

[~isapego], the review summary:
| Code style | OK |
| API compatibility | OK |
| Product behavior | defaults not changed |
| Documentation | not required |
| Binary compatibility | OK |
| Tests | OK | 
| Comments | # The patch fixes performance issue but I've not seen any 
benchmarks' results or performance analyze.
# My experience with cpp is not relevant, contact another engineer for in-depth 
technical review. |

> CPP: Get rid of additional copy on Get
> --------------------------------------
>
>                 Key: IGNITE-9161
>                 URL: https://issues.apache.org/jira/browse/IGNITE-9161
>             Project: Ignite
>          Issue Type: Improvement
>          Components: platforms
>    Affects Versions: 2.0
>            Reporter: Igor Sapego
>            Assignee: Igor Sapego
>            Priority: Major
>              Labels: cpp
>             Fix For: 2.7
>
>
> Currently, helper classes from {{operations.h}} header file, e.g. 
> {{Out1Operation}} contain additional value, that can't be optimized-out by 
> the compiler on return, even though the operation itself is a temporary 
> object.
> As a solution, such classes should accept and operate on a reference to a 
> temporary object, so that [copy 
> elision|https://en.wikipedia.org/wiki/Copy_elision] can be used by a compiler.



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