[Issue 10372] New: Document NRVO is applied in simple cases

d-bugmail at puremagic.com d-bugmail at puremagic.com
Sun Jun 16 01:41:04 PDT 2013


http://d.puremagic.com/issues/show_bug.cgi?id=10372

           Summary: Document NRVO is applied in simple cases
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: spec
          Severity: normal
          Priority: P2
         Component: websites
        AssignedTo: nobody at puremagic.com
        ReportedBy: verylonglogin.reg at gmail.com
        Depends on: 10371


--- Comment #0 from Denis Shelomovskij <verylonglogin.reg at gmail.com> 2013-06-16 12:41:03 MSD ---
If documentation will guarantee NRVO is applied in simple cases (i.e. no copy
construction occurs) structs with disabled default construction will be able to
be returned from functions (currently it is not guaranteed to compile):
---
struct S
{ @disable this(this); }

S makeS()
{
    S s = S();
    return s;
}

void main()
{
    S s = makeS();
}
---

Also Issue 10371 have to be fixed first.

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