Extending B with Control Flow Breaks

نویسندگان

  • Lilian Burdy
  • Antoine Requet
چکیده

This paper describes extensions of the B language concerning control flow breaks in implementations and specification of operations with exceptional behaviors. It does not claim to define those extensions in a pure formal and complete way. It is rather a presentation of what could be done and how it could be done. A syntax is proposed and proof obligations are defined using a weakest precondition calculus extended to deal with abrupt termination. Examples emphasizing the advantages of these extensions are also given.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Extending Operational Zone of Rotary Power Flow Controller by Controlling Tap-changers of Transformers

This paper proposes a method for extending the ability of rotary power flow controller (RPFC) using tap-changer of the RPFC’s transformers. A detailed model of the device is presented to analyze the effects of the tap changer operation on the performance of the RPFC. To evaluate the results, the RPFC model is simulated using PSCAD/EMTDC software. Dynamic operation of the RPFC on a 400 kV transm...

متن کامل

Residual DNA double strand breaks correlates with excess acute toxicity from radiotherapy

Introduction: A high risk for development of severe side effects after radiotherapy may be correlated with high cellular radiosensitivity. To enhance radiation therapy efficiency a fast and reliable in-vitro test is desirable to identify radiosensitive patients. The aim of present study was to identify the mechanism of radiation induced DNA double-strand breaks (DSBs) and DSB r...

متن کامل

On Event-B and Control Flow

Event-B is a general purpose formal development method suitable for the design and detailed development of safety-critical systems. Being a data-driven formalism, it lacks any control flow constructs. This turns out to be a limitation for systems with rich control flow properties. In Event-B, control flow information has to be embedded into guards and event actions and this results in an entang...

متن کامل

Mutagen sensitivity exhibits a dose-response relationship in case-control studies.

We have been quantitating, as a marker of cancer susceptibility, induced chromatid breaks in lymphocyte cultures exposed to chemical mutagens. This report highlights the consistency of the results from two case-control studies, using different methods of presenting the data. In both the lung cancer case-control study, which used bleomycin, a radiomimetic agent, as the test mutagen, and the mela...

متن کامل

Ac Field Effect Flow Control of Eof in Complex Microfluidic Systems with Integrated Electrodes

This paper presents a novel method to control Electro Osmotic Flow (EOF) with AC electrical fields. It is shown that with a single potential the zeta potential at a solid liquid interface and the channel potential that drives the EOF can be controlled in a synchronized matter to create a net flow with zero average potential. The frequency regime in which the EOF can be controlled is bound by th...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2003