Patent · US Active

Runtime support for nullable types

US7627594B2 · kind B2 · utility

8Cited by

6References

14Claims

0Family size

Assignee

Microsoft Corporation · US

Inventors

Henricus Johannes Maria Meijer · Mercer Island, US
Anders Hejlsberg · Seattle, US
Dinesh Chandrakant Kulkarni · Sammamish, US
Vance Morrison · Kirkland, US
John Duffy · Renton, US
Christopher W. Brumme · Mercer Island, US
Matthew J. Warren · Redmond, US
Luca Bolognese · Redmond, US
Peter A. Hallam · Seattle, US
Gary Shon Katzenberger · Woodinville, US

Key dates

Filing date	Aug 29, 2005
Grant date	Dec 1, 2009
Priority date	—
Expiry date	Sep 1, 2026

Classification

Technology area (CPC G)Physics
CPC primaryG06F8/31
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The subject disclosure pertains to systems and methods for supporting null capabilities for general purpose programming languages. Low level, runtime support for a nullable type is provided to ensure consistency and coherency. An execution component restricts support of the nullable type to programming language types that lack a null capability. The execution component may also provide support for conversion between the nullable type and a reference type.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.