The article discusses the security in cprogramminglanguage. critics claim that the decades-old cprogramminglanguage is inherently insecure. The author disagrees. Programmers just have to use security tools to fix ...
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The article discusses the security in cprogramminglanguage. critics claim that the decades-old cprogramminglanguage is inherently insecure. The author disagrees. Programmers just have to use security tools to fix software *** in recent years has identified the root cause of many of the vulnerabilities typically found in c/c++ code. coding standards such as the cERT c Secure coding Standard help programmers avoid the associated pitfalls. However, without automated tools to check for non-compliance, it is, arguably, more or less impossible for a programmer to deliver fault-free code. Software analysis tools for staticcode analysis are available to enforce compliance with the guidelines recommended by these established coding standards. They can perform in-depth, systemwide analysis of the code, and can utilise formal methods to ensure that system security is not compromised. Software tools enforce compliance with the guidelines recommended by established coding standards.
In this paper we analyse the logic of the programminglanguagec, where integers used as logical values. The classical logic has several axiom-systems, the oldest one is the axioms of the Boolean-algebra. We analyse h...
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ISBN:
(纸本)953713802X
In this paper we analyse the logic of the programminglanguagec, where integers used as logical values. The classical logic has several axiom-systems, the oldest one is the axioms of the Boolean-algebra. We analyse how logical laws work in c We also compare some many-valued systems to the logic of c We show that the logic of c is not two-valued logic, neither a "classical many-valued logic". The commutative laws are not justified for all cases, because of the lazy evaluation of conditions. The problem occurs when an evaluation in a condition can produce error message. We present a three-valued non-commutative logic describing the logic of c.
Edutainment teaching/learning tools must be very "entertaining". Otherwise, the tools will lose its attraction soon or later. In order to become formal tools in everyday teaching/learning process, they must ...
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ISBN:
(纸本)9783540730101
Edutainment teaching/learning tools must be very "entertaining". Otherwise, the tools will lose its attraction soon or later. In order to become formal tools in everyday teaching/learning process, they must be something more and also "something less" than an ordinary computer game in some aspects. We report our design and development of the proposed interactive Bomberman game-based teaching/learning tool that we are authoring. It brings modern education concept in concert with the classical teaching and laboratory work. While are reading/writing ccodes in the proposed game-based environment, their ccodes will control the movement of the Bomberman accompany with game music. This vivid learning environment can engage students spending their precious time for extensive practice since students have highly motivation to win the game. We hope that we have shown a new path for educational practice with computer games for teaching cprogrammingcourse.
This paper is concerned with the development of software for embedded systems which will typically be implemented using a small microcontroller (8051, PIc, Hc08 or similar device). It is argued that c remains the most...
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This paper is concerned with the development of software for embedded systems which will typically be implemented using a small microcontroller (8051, PIc, Hc08 or similar device). It is argued that c remains the most appropriate means of developing software for such systems, and guidelines are presented that allow the use of key object-oriented development techniques with this language. Two additional design techniques are also discussed: these are referred to as Project Header and Port Header. An example is used to illustrate the techniques described in the paper.
This paper reviews the matrix programming lanician/statistician. We focus on scientificprogramming using Ox and discuss examples of possible interest to econometricians and statisticians, such as random number genera...
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Real-time analysis of an airframe's flutter boundaries during flight testing can help ensure safety and reduce costs. One method of identification is to perform correlation filtering using a set of singlet functio...
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Real-time analysis of an airframe's flutter boundaries during flight testing can help ensure safety and reduce costs. One method of identification is to perform correlation filtering using a set of singlet functions. The method is able to identify accurately the frequency and damping coefficient of the system to excitation, but the computational time required can be too significant to implement in real-time. An alternative method is presented for correlation filtering that employs a multiple-level discrete wavelet transform. The wavelet transform decomposes the response signal into a set of subsignals that correspond to different frequency bands. The same operation is applied to each entry in a dictionary of singlet functions. The transform results in a considerable reduction in the data and, thus, to a reduction in the computational time needed to calculate the correlation. We demonstrate that our approach is able to identify accurately frequency and damping characteristics of the impulse response of both a synthetically generated test signal and actual flight-test data. As a result, real-time identification of flutter boundaries during flight testing may be possible with relatively low-cost computational resources.
作者：
camberos, JAWhite, MDUSAF
Res Lab Computat Sci Branch Aeronaut Sci DivAir Vehicles Directorate Wright Patterson AFB OH 45433 USA
Focuses on the portability and scalability of the computational electromagnetics code on massively parallel machines. Theoretical background of Maxwell equations; computer code implementation; Parallel implementation ...
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Focuses on the portability and scalability of the computational electromagnetics code on massively parallel machines. Theoretical background of Maxwell equations; computer code implementation; Parallel implementation and compiling options.
Fortran has long been the mother-tongue of the scientificcommunity. This note looks at the cprogramminglanguage from the viewpoint of numerical computing with the emphasis placed on econometric applications. ccan ...
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Fortran has long been the mother-tongue of the scientificcommunity. This note looks at the cprogramminglanguage from the viewpoint of numerical computing with the emphasis placed on econometric applications. ccan be used as a replacement for other lower level programminglanguages, and also a replacement or as a complement to higher level matrix programminglanguages such as GAUSS, MATLAB, Ox, and S-PLUS.
The personal computer hardware marketplace has grown rapidly in recent years. Many software projects, as a cost-cutting measure, are buying "off-the-self" items to meet heir hardware requirements. Almost all...
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ISBN:
(纸本)1581131275
The personal computer hardware marketplace has grown rapidly in recent years. Many software projects, as a cost-cutting measure, are buying "off-the-self" items to meet heir hardware requirements. Almost all of the device drivers for these devices are written in the cprogramminglanguage. However, the selection of the programminglanguage for the project does not need to be confined to c. This paper details the powerful tools in Ada 95, such as pragmas to interface code written in other programminglanguages to Ada 95 applications. An example of a generic realtime Ada 95 application interfacing with a low-level c serial device driver is used to aid the reader in the concepts and idea's discussed in the paper.
A toothbrush/dentifrice abrasion machine was developed to use in dental research laboratory. The mechanism was designed as a hexagonal block driven by two stepping motors which move the mechanism in four directions. I...
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A toothbrush/dentifrice abrasion machine was developed to use in dental research laboratory. The mechanism was designed as a hexagonal block driven by two stepping motors which move the mechanism in four directions. In order to control the stepping motors speed, position and direction commands or signals were generated by a software written in cprogramminglanguage and then these commands were applied the stepping motor drives through parallel port of a personal computer. The toothbrush/dentifrice abrasion machine was finally used to measure different longevity of tooth brush. It was experimentally shown that the mechanism can be used for highly accurate position and speed applications.
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