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Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/coding-style.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/coding-style.rst b/Documentation/coding-style.rst index 51afef27..065fbe0a 100644 --- a/Documentation/coding-style.rst +++ b/Documentation/coding-style.rst @@ -151,6 +151,10 @@ reference for the duration of the operation that borrows it. never by reference. The caller can decide whether to transfer its ownership of the std::shared_ptr<> with std::move() or retain it. The callee shall use std::move() if it needs to store the shared pointer. + * Do not over-use std::move(), as it may prevent copy-elision. In particular + a function returning a std::shared_ptr<> value shall not use std::move() in + its return statements, and its callers shall not wrap the function call + with std::move(). * Borrowed references to shared objects are passed as references to the objects themselves, not to the std::shared_ptr<>, with the same rules as for single owner objects. |