Summary: Scope Delegates + Delegate Literals
           Product: D
           Version: D2
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Keywords: performance
          Severity: normal
          Priority: P2
         Component: DMD

--- Comment #0 from David Simcha <> 2011-12-16 11:23:57 PST ---
The following code apparently heap-allocates a closure even though doNothing()
takes a scope delegate.  This happens when doNothing() is passed a delegate
literal.  When it's passed the address of a named inner function, no heap
allocation takes place.

import core.memory;

void main() {

    foreach(j; 0..1_000_000_000) {

void doIt() {
    int i;
    doNothing(() { i++; });

void doNothing(scope void delegate() dg) {

Configure issuemail:
------- You are receiving this mail because: -------

Reply via email to