Porting C++ code on the 64-bit system

Question

We are occupying questions of 64-bit developing. We make new article for 64-bit developers:

20 issues of porting C++ code on the 64-bit platform.

Annotation. Program errors occurring while porting C++ code from 32-bit platforms on 64-bit ones are observed. Examples of the incorrect code and the ways to correct it are given. Methods and means of the code analysis which allow to diagnose the errors discussed, are listed.

In the article you will learn about:

· typical errors of programming which occur on 64-bit systems;

· the reasons for appearing of these errors and the corresponding examples;

· methods of correcting the listed errors;

· the review of methods and means of searching errors in 64-bit programs.

The given information will allow you:

· to learn the differences between 32-bit and 64-bit systems;

· to avoid errors while writing the code for 64-bit systems;

· to speed up the process of migration of a 32-bit application on the 64-bit architecture with the help of the great reducing of the time of debugging and testing;

to forecast the time of porting the code on the 64-bit system more accurately and seriously.

See: www.viva64.com/articles/20%20issues%20of%20porting%20C++%20code%20on%20the%2064-bit%20platform.pdf

We hope the article has been useful for you and will help to simplify the development and debugging of 64-bit applications. We will be glad to receive your opinions, remarks, corrections, additions and will surely include them in the next version of the article.

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Andrey, www.Viva64.com

Andrey Karpov · Answer

Andrey Karpov. 64 bits Wp64 Visual Studio 2008 Viva64 and all the rest... Abstract. The purpose of this article is to answer some questions related to safe port of C/C++ code on 64-bit systems. The article is written as an answer to the topic often discussed on forums and related to the use of /Wp64 key and Viva64 tool. Andrey Karpov Evgeniy Ryzhkov. Advantages of Viva64 Abstract. The purpose of this commercial article is to show advantages of Viva64 tool throughout the life cycle of software development. Alexey Kolosov. Using Static Analysis in Program Development Abstract. Static analysis allows checking program code before the tested program is executed. The static analysis process consists of three steps. First the analyzed program code is split into tokens i.e. constants identifiers reserved symbols etc. This operation is performed by lexer. Second the tokens are passed to parser which builds an abstract syntax tree (AST) based on the tokens. Finally the static analysis is performed over the AST. This article describes three static analysis techniques: AST walker analysis data flow analysis and path-sensitive data flow analysis.

Andrey Karpov · Answer

Evgeniy Ryzhkov. http://www.viva64.com/articles/Viva64_-_what_is_and_for.html Annotation. This short paper is a quick overview of the Viva64 project. Andrey Karpov. http://www.viva64.com/articles/Problems_of_testing_64-bit_applications.html Annotation. The article observes some questions related to testing the 64-bit software. Some difficulties which a developer of resource-intensive 64-bit applications may face and the ways to overcome them are described. Andrey Karpov. http://www.viva64.com/articles/64_bits_for_developers_-_from_Wp64_to_Viva64.html Annotation. The development of the 64-bit solutions market has given some new tasks in the field of their verification and testing. The article describes one of such tools - Viva64. It's a lint-like static code analyzer assigned for exposure of errors related with the peculiarities of the 64-bit platforms. The prerequisites for the creation of such an analyzer and its connection with the Detect 64-Bit Portability Issues regime in C++ compiler Visual Studio 2005 are covered in the article. Evgeniy Ryzhkov. http://www.viva64.com/articles/Driver_Development_for_Windows_64-bit.html Annotation. Questions concerned with the release of drivers for 64-bit versions of Windows are considered in this article. Some typical problems and the ways of their solutions are listed in the article as well as tools which simplify the process of drivers developing. Vladimir Elesin. http://www.viva64.com/articles/Application_port_to_64-bit_platforms_or_never_cackle_till_your_egg_is_laid.html Annotation. So is it really necessary to port the applications to the 64-bit platforms? And if the decision of the porting is made then by what means can it be done with the least time and financial costs? Evgeniy Ryzhkov. http://www.viva64.com/articles/Viva64_-_working_up_of_64-bit_applications.html Annotation. Viva64 – is a tool for searching of errors and possible problems at C/C ++ code at the applications port on the 64-bit platform. Nowadays when the necessity of the 64-bit versions software output is realized by the most of the developers it is too important to be sure of the working up product quality. Even if the traditional 32-bit version of your product has been tested carefully its portability on the 64-bit platform may reveal some unexpected problems. Some separate items are devoted to the applications portability problems and this one tells how to provide the necessary level of the code quality with the help the static analyzer Viva64. Evgeniy Ryzhkov. http://www.viva64.com/articles/PortSample.html Annotation. While porting 32-bit software to 64-bit systems there may appear some errors in the code of applications which were written in C++ language. The cause for these hides in the alteration of the base data types (to be more exact in the relations between them) with the new hardware platform.