Matlab与C/C++混合编程接口及应用

Matlab具有很强的数值计算和分析等能力,而C/C++是目前最为流行的高级程序设计语言,两者互补结合的混合编程在科学研究和工程实践中具有非常重要的意义。从Matlab调用C/C++代码及C/C++调用m文件两方面,深入地研究了它们之间混合编程的原理和实现机制,并且给出了具体条件下的混合编程方法和步骤。实验表明,给出的Matlab与C/C++混合编程接口及应用方法是有效、实用的。     

安全视觉下C/C++程序漏洞的分类研究

C/C++语言在追求高效、灵活的同时也带来了诸如内存泄漏、指针非法使用等安全漏洞,极大地威胁着系统的安全。通过对计算机漏洞的分类研究,有助于增强人们对漏洞本质的理解以及针对性地检测、消除漏洞。本文在分析大量安全漏洞的基础上,对C/C++中的安全漏洞进行分类,为安全规则检查器的构造提供依据,为软件的安全开发提供指导。     

一种静态检测C++异常安全的方法

异常作为C++语言的错误处理机制,为C++程序设计提供了很多便利。恰当使用异常可以提高程序的健壮性,但不当使用会导致程序运行效率降低,甚至使程序崩溃。文章通过分析异常在C++程序中的各种表现形式,对异常安全漏洞进行了分类,在此基础上构建异常安全规则,采用过程间自下而上收集传递信息和过程内语法制导翻译相结合的方法,实现了C++异常安全的静态检查。     

C/C++程序安全漏洞的分类与分析

C/C++语言开发者追求的是语言的高效性、灵活性,为此不同程度上忽略了语言的安全性。目前很多机构比如NASA犤2犦等对不同语言中存在的安全问题提供了相关信息,文章在此基础上对C/C++程序中存在的安全漏洞进行分类并为每一小类作简要分析,为开发和确保安全的软件提供了指导     

用WATCOM C／C＋＋编写——显示真彩色BMP的程序

现在许多游戏都是基于DOS4GW的保护模式的程序,用WATCOM C/C++就能编写这种程序。本文介绍了怎样用WATCOM C/C++编写显示真彩色BMP的程序。 1.怎样编写基于DOS4GW的程序 编写基于DOS4GW的程序,需要WATCOMC/C++的32位的DOS编译器,一般9.0以上的版本中就有。WATCOM C/C++与MSC基本上是兼     

C#与C++的区别

C#是由C和C++派生出的一种简单、现代、面向对象和类型安全的编程语言。本文讨论C#与C++的主要区别,以便熟悉C++的程序开发者能够快速掌握C#的程序设计。     

基于Qt的Android应用程序C/C++开发方法与实践

Android Java应用程序（APP）运行时需依赖Dalvik虚拟机环境,从而影响APP的性能表现.C/C++程序具有极好的硬件适应能力,但不能直接开发Android APP.针对该问题,利用Dalvik虚拟机支持JNI （Java Native Inter-face）调用的特点,设计了基于Qt的Android APP C/C++开发方法框架体系,给出了框架的详细工作机制和解决方案,系统总结了利用C/C++开发Android APP的主要过程和步骤.最后,以Android版机械CAD导教APP的开发工作为例,验证了方法的有效性和可行性,为直接利用C/C++开发Android APP提供了一种新途径.     

Matlab与C/C＋＋混合编程技术研究

Matlab具有强大的数值计算和分析等能力,而C/C++是目前最为流行的高级程序设计语言,两者互补结合的混合编程在科学研究和工程实践中具有非常重要的意义.因此,从Matlab调用C/C++代码及C/C++调用m文件两方面,深入地研究了它们之问混合编程的原理和实现机制,并且给出了具体条件下的混合编程方法和步骤.实例表明,提出的Matlab与C/C++混合编程方法是简洁、有效的.     

大学计算机专业C与C++程序设计语言开设探讨

本文在比较分析了当前大学计算机专业C与C++程序设计语言的开设现状,以及C与C++语言异同的基础上,提出在大学计算机专业程序设计语言课程设置中直接开设C++的观点。并给出直接开设C++语言时的教学内容设置、教材选择参考和开设时间建议。     

C++语言编程技术分析

阐述了C++语言与C语言的关系,以及C++编程技术的基础,对C++最为突出的程序设计功能类和对象进行分析,给出了C++语言编程的有关技巧.     

OKI C5200／C3100

激光打印和LED打印是当今数码打印领域的两大核心技术．二者的不同之处在于光扫描成像过程。目前．普通激光打印技术的光扫描成像过程是将全部数据信号串行传送给一个光发射装置,然后发射出的光线经旋转的多棱镜反射后再成像于感光鼓上。类似于激光打印技术,LED技术的光扫描成像方式则是采用了密集LED阵列为光发射器,数据电信号经LED转化为光信号．并照射到感     

Exceptional C or C with exceptions

C does not have exception handling facilities. Errors are handled by examining the value returned by each function and signals (conditions reported to the program) are handled by using library functions. These approaches lead to ad hoc error-handling techniques and can make programs hard to understand. Exceptional C, a superset of C, provides exception handling facilities. Exceptional C integrates the two techniques used by C programmers (i.e., status values and signals) to handle errors into one unified exception handling mechanism. In this paper, I review exception handling models, specify the criteria used for designing the exception handling facilities in Exceptional C, and then describe these facilities. I also illustrate the use of the exception handling facilities with examples.     

High-Fidelity C/C++ Code Transformation

As software systems become increasingly massive, the advantages of automated transformation tools are clearly evident. These tools allow the machine to both reason about and manipulate high-level source code. They enable off-loading of mundane and laborious programming tasks from human developer to machine, thereby reducing cost and development timeframes.Although there has been much academic work in software transformation, there still exists many hurdles in realising this technology in a commercial domain. From our own experience, there are two significant problems that must be addressed before transformation technology can be usefully applied in a commercial setting. These are: 1.) avoiding disruption of style (i.e. layout and commenting) and the introduction of any undesired modifications which occur as a side effect of the transformation process. 2.) correct handling of C preprocessing and the presentation of a semantically correct view of the program during transformation. Many existing automated transformation tools inherently disrupt style through the use of pretty printing and the need to perform preprocessing before any transformation. Some also require source to be modified so that it conforms to a subset of the grammar. In this paper we describe our own C/C++ transformation system, Proteus, that is able to meet the stringent criteria laid out by Lucent's own software developers.     

改进C/C++的预处理功能

预处理在C/C 中发挥着重要作用,然而这些预处理功能存在着一些缺陷,例如在头文件包含进来时,无法改变头文件中的内容;代码的重用性不高;大量重复代码等等。本文提出用一种高级配置语言XVCL(XML-basedVariantConfigura-tionLanguage)代替原来的预处理机制,来克服以上提出的问题。文件被组织为树形结构,并定义了利于提高重用性的变量作用域机制。文章通过一个实例来验证本文提出的方法的有效性。     

High-fidelity C/C++ code transformation

As software systems become increasingly massive, the advantages of automated transformation tools are clearly evident. These tools allow the machine to both reason about and manipulate high-level source code. They enable off-loading of mundane and laborious programming tasks from human developer to machine, thereby reducing cost and development time frames.Although there has been much work in software transformation, there still exist many hurdles in realizing this technology in a commercial domain. From our own experience, there are two significant problems that must be addressed before transformation technology can be usefully applied in a commercial setting. These are: (1) Avoiding disruption of the style (i.e., layout and commenting) of source code and the introduction of any undesired modifications that can occur as a side effect of the transformation process. (2) Correct automated handling of C preprocessing and the presentation of a semantically correct view of the program during transformation. Many existing automated transformation tools require source to be manually modified so that preprocessing constructs can be parsed. The real semantic of the program remains obscured resulting in the need for complicated analysis during transformation. Many systems also resort to pretty printing to generate transformed programs, which inherently disrupts coding style. In this paper we describe our own C/C++ transformation system, Proteus, that addresses both these issues. It has been tested on millions of lines of commercial C/C++ code and has been shown to meet the stringent criteria laid out by Lucent’s own software developers.     

C2C电子商务企业竞争力研究

伴随着互联网的发展,电子商务逐渐进入我们的经济生活中。作为网络经济的产物,电子商务企业与传统企业在竞争优势上存在巨大差异。面对着日益激烈的竞争,电子商务企业如何保持核心竞争力优势对企业的生存尤为重要。本文聚焦于C2C领域,并以淘宝网为例,尝试从企业核心竞争力的角度诠释电子商务企业与传统企业竞争优势的差异和竞争力培养的着力点。     

C/C++预处理分析与改进

通常的C/C 预处理器是一个宏处理器,在编译前自动地把源文件转换为编译器可识别的形式。传统的预处理方法基于文本行替换,没有考虑到具体的上下文环境。这种预处理机制在文件包含、宏作用域、头文件关系上存在着一些缺陷,会影响工程项目代码重用,降低程序的可维护性、可扩展性等。通过从分析c预处理器缺陷出发,并利用FOG[1]及其语言可以得到一种基于元变量和元函数的语法替换机制的解决方案。