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1.
V2C++——一个用C++实现的VHDL翻译型模拟器   总被引:2,自引:0,他引:2  
由于面向对象的C++语言更贴近描述硬件对象的VHDL语言C++实现翻译型VHDL模拟器,并利用C++本身的编译器的优化功能,可以得到运行的时间和空间方面效率较高的VHDL模拟器,V2C++的原型设计和初步实践表明,用C++实现VHDL翻译性模拟器比解释性模拟器具有较高效率,利于较大规模的电路的模拟。  相似文献   

2.
DPC-C++语言是一个支持分布式应用程序设计的面向对象的并发程序设计语言,本文侧重介绍了DPC-C++语言的并发性实现及其程序模型,并简要给出其运行支持系统的设计。  相似文献   

3.
C++与Fortran混合语言编程中动态链接库的调用   总被引:5,自引:0,他引:5  
绍了C++和FORTRAN90混合语言编程中,在C++中调用Fortran动态链接库(DLL,Dyanamic Link Library)的方法以及参量传递、函数调用等的方法。  相似文献   

4.
孙建伶  董金祥 《计算机学报》1995,18(10):777-782
关系数据库与程序设计语言之间的松散耦合存在着编程范型及类型系统两方面的失配,是提高数据库应用软件之质量和生产率的极大障碍,面向对象数据库(OODB)与程序设计语言(PL)的无缝结合旨在消除这种失配,本文以面向对象数据库管理系统原型OSCAR为背景,提出OODB与PL无缝结合的基本准则,OODB无缝C^++应用编程界面的对象持久性模型,以及实现OODB无缝C^++应用编程界面的关键技术。  相似文献   

5.
刘国田 《软件》1996,(2):31-36
机械设计目前已全面应用CAD方法即借助电脑软件实现建模及修改等。为了利用C++的类封装机制,人们常常开发基于C^++的高层面向对象语言来编制机械设计软件。带有虚拟函数或虚拟基类的C^++对象包含动态内存指针,这些指针超出创建它们程序生存期即告无效,但开发基于C^++的高层面向对象语言必须使用稳固对象。本文分析隐含指针问题并讨论实现对象转储的途径。  相似文献   

6.
用C++实现OODB中对象多版本   总被引:1,自引:0,他引:1  
作者利用Sybase作底层的数据存储,在C++中扩展了永久类,实现了OODB的一个重要功能,文中讨论的是在此基础上,利用C++语言重载能力,和关系数据库便于集合操作的特性,扩展我版本类,实现OODB对象多版本。  相似文献   

7.
该文介绍了一种较新的并行程序设计语言CC++,该语言在顺序C++语言的基础之上扩充而来的,该文对扩充的8种结构一一进行了分析,并介绍了具体使用方法,从而说明CC++具有效的语言表示能力。  相似文献   

8.
基于ODBC的VisualC++应用程序设计研究   总被引:10,自引:1,他引:10  
张奔  王志新 《计算机应用》1998,18(11):11-14
本文简要介绍了ODBC的工作原理,基于ODBC开发VisualC++应用程序,重点就MFC与ODBC驱动程序管理器的运行机制进行分析研究,给出了部分应用实例。  相似文献   

9.
本文介绍了C^++语言的设计思想,指导原则。将C^++语言与其他面向对象程序设计语言以及C语言作了一些比较,讨论了它的面向对象机制及与OOP的关系。  相似文献   

10.
面向对象程序设计(OOP)是九十年代程序设计发展的主注以及C++是面向对象程序设计语言中最流行的一种,但一些因素严重影响着C++语言的产及使用其中最主要的一点就是C++缺乏实用,方便的公用类库,本文介绍了两个C++语文类库的构造。  相似文献   

11.
Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.  相似文献   

12.
European Community policy and the market   总被引:1,自引:0,他引:1  
Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.  相似文献   

13.
融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。  相似文献   

14.
Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.  相似文献   

15.
This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.  相似文献   

16.
Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008  相似文献   

17.
为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.  相似文献   

18.
Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.  相似文献   

19.
This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)SM and Team Software Process (TSP){SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.  相似文献   

20.
基于复小波噪声方差显著修正的SAR图像去噪   总被引:4,自引:1,他引:3  
提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。  相似文献   

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