digitalmars.D.bugs - [Issue 4086] New: Standard struct constructor for the heap
- d-bugmail puremagic.com (51/51) Apr 12 2010 http://d.puremagic.com/issues/show_bug.cgi?id=4086
- d-bugmail puremagic.com (10/10) Jan 09 2011 http://d.puremagic.com/issues/show_bug.cgi?id=4086
http://d.puremagic.com/issues/show_bug.cgi?id=4086 Summary: Standard struct constructor for the heap Product: D Version: future Platform: All OS/Version: All Status: NEW Severity: enhancement Priority: P2 Component: DMD AssignedTo: nobody puremagic.com ReportedBy: bearophile_hugs eml.cc D allows to initialize a struct on the stack with a default syntax: struct Node { int data; Node* next; } void main() { Node n1 = Node(10); // OK Node n2 = Node(10, null); // OK } So I propose to introduce that same handy automatic syntax for heap allocation too: struct Node { int data; Node* next; } void main() { Node* n1 = new Node(10); // OK Node* n2 = new Node(10, null); // OK } This feature doesn't increase the complexity of the language for the programmer, it lowers the complexity because there is one less special case to remember (even if the compiler can become a bit more complex). To keep things tidy, such default costructor must be absent if any other costructor is defined in the struct: struct Foo { int data; Foo* next; this(int d, Foo* p) { data = d; next = p; } } void main() { Foo* f = new Foo(10); // Error, standard constructor is absent } -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Apr 12 2010
http://d.puremagic.com/issues/show_bug.cgi?id=4086 Andrei Alexandrescu <andrei metalanguage.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED CC| |andrei metalanguage.com AssignedTo|nobody puremagic.com |andrei metalanguage.com -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Jan 09 2011