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C++

Posts: C++ articles

Aug 18 2010
64-bit programs and floating-point calculations
Andrey Karpov
A developer who is porting his Windows-application to the 64-bit platform sent a letter to our support service with a question about using floating-point calculations. By his permission we...
...
Aug 13 2010
Big Brother helps you
Andrey Karpov
I was convinced one more time that programmers write programs absolutely carelessly, so that their programs work not because of their skill but due to chance and care of Microsoft or Intel...
...
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Jun 29 2010
A Collection of Examples of 64-bit Errors in Real Programs
Andrey Karpov
This article is the most complete collection of examples of 64-bit errors in the C and C++ languages. The article is intended for Windows-application developers who use Visual C++, however, it...
...
Jun 07 2010
The reasons why 64-bit programs require more stack memory
Andrey Karpov
In forums, people often say that 64-bit versions of programs consume a larger amount of memory and stack. Saying so, they usually argue that the sizes of data have become twice larger. But...
...
Apr 01 2010
Static code analysis and the new language standard C++0x
Andrey Karpov
The article discusses the new capabilities of C++ language described in the standard C++0x and supported in Visual Studio 2010. By the example of PVS-Studio we will see how the changes in...
...
Feb 28 2010
In what way can C++0x standard help you eliminate 64-bit errors
Andrey Karpov
Programmers see in C++0x standard an opportunity to use lambda-functions and other entities I do not quite understand :). But personally, I see convenient means in it that allow us to get rid of...
...
Feb 05 2010
/Wp64 switch and template processing error
Evgenii Ryzhkov
While maintaining the analyzer Viva64 (included into PVS-Studio) we often comment upon the switch /Wp64 of Microsoft Visual C++. If you are out of the swim, let me remind you that this...
...
Jan 11 2010
Issues of 64-bit code in real programs: qsort
Andrey Karpov
We continue the cycle of posts about 64-bit errors detected in real applications. Time passes, demands for memory being consumed grow more and more, and now the time has come when somebody decides...
...
Jan 11 2010
Optimization in the world of 64-bit errors
Andrey Karpov
In the previous blog-post I promised to tell you why it is difficult to demonstrate 64-bit errors by simple examples. We spoke about operator[] and I told that in simple cases even incorrect...
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Jan 11 2010
Search of 64-bit errors in array implementation
Andrey Karpov
In PVS-Studio 3.43, we revised the way how Viva64 analyzer detects errors in the classes serving as containers (arrays). Before, we have stuck to the principle that if a class has operator[...
...
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