The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 19, 2019

Filed:

Oct. 05, 2016
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Xiao Feng Guan, Shanghai, CN;

JiuFu Guo, Shanghai, CN;

Yu Xuan Zhang, Shanghai, CN;

Yuheng Zhang, Shanghai, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/36 (2006.01); G06F 9/44 (2018.01);
U.S. Cl.
CPC ...
G06F 11/3672 (2013.01);
Abstract

The disclosure provides a method for detection of an uninitialized variable. The method includes running a first function, wherein the first function comprises a local variable and a first flag associated with the local variable for indicating an initialization state of the local variable; calling a second function from the first function, with the local variable as a parameter of the second function, wherein the second function comprises a second flag associated with the parameter for indicating an initialization state of the parameter; and updating the first flag based at least on the second flag returned from the second function.


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