iskm/learnxinyminutes-docs
1
0
Fork 0
mirror of https://github.com/adambard/learnxinyminutes-docs.git synced 2024-12-23 09:41:36 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

A note about RVO

Browse Source
This commit is contained in:
Geoff Liu 2015-09-02 00:46:30 -06:00
parent 4a2af140e4
commit 85f6ba0b57
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
c++.html.markdown
View File

@ -262,7 +262,10 @@ string retVal = tempObjectFun();
// - the returned object is destroyed
// The returned object is called a temporary object. Temporary objects are
// created whenever a function returns an object, and they are destroyed at the
// end of the evaluation of the enclosing expression. So in this code:
// end of the evaluation of the enclosing expression (Well, this is what the
// standard says, but compilers are allowed to change this behavior. Look up
// "return value optimization" if you're into this kind of details). So in this
// code:
foo(bar(tempObjectFun()))
// assuming `foo` and `bar` exist, the object returned from `tempObjectFun` is