digitalmars.D.bugs - [Issue 9637] New: std.typecons.nullable and nullableRef functions
- d-bugmail puremagic.com (35/35) Mar 02 2013 http://d.puremagic.com/issues/show_bug.cgi?id=9637
http://d.puremagic.com/issues/show_bug.cgi?id=9637 Summary: std.typecons.nullable and nullableRef functions Product: D Version: D2 Platform: All OS/Version: All Status: NEW Severity: enhancement Priority: P2 Component: Phobos AssignedTo: nobody puremagic.com ReportedBy: bearophile_hugs eml.cc Spinoff of Issue 9265 I suggest to add to std.typecons two small functions that help the creation of a Nullable and NullableRef: import std.typecons; void main() { int x; auto n1 = Nullable!int(x); auto n2 = NullableRef!int(&x); auto n3 = nullable(x); // missing auto n4 = nullableRef(&x); // missing } This gets handy when the type of the item is complex: auto n = nullable(data); Instead of: auto n = Nullable!(immutable int[4])(data); - - - - - - - - - - - - Note: maybe it's possible to support Nullable(T, T nullValue) like this: auto n5 = nullable!(int.max)(x); But maybe for simplicity it's better to not support this. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Mar 02 2013