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Posts

Posts

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[...
...
Jan 11 2010
Peculiarities of virtual functions
Andrey Karpov
I decided to describe one thing related to virtual functions because I am afraid I can forget it and return to this question once again later...
...
Dec 28 2009
PVS-Studio 3.43 New Version Released
Andrey Karpov
We have released PVS-Studio 3.43 version. This version makes developers' lives much easier, because we have enhanced both the mechanism of functioning as well as its user's...
...
Dec 28 2009
Many cores are good but a fast hard disk is good too
Evgenii Ryzhkov
Developing the code analyzer PVS-Studio we consider the task of increasing the tool's performance. Such solutions are quite slow, so the programmer who possesses even a powerful computer...
...
Dec 28 2009
Embarcadero C++Builder and 64-bit code
Andrey Karpov
Some time ago, we wrote several letters to Embarcadero offering them to collaborate with us and use our tools to test 64-bit C/C++ code. Our idea was to integrate PVS-Studio with C++Builder...
...
Dec 28 2009
The role of "Fibonacci numbers" in the history of parallel programming
Andrey Karpov
Fibonacci numbers are the elements of the number sequence 1, 1, 2, 3, 5, 8, 13, 21, 34, ... where each following number equals the sum of the two previous ones. Fibonacci numbers can be seen in...
...
Dec 25 2009
One of the Answers to the Question "Who Needs All that Parallelism at All?"
Andrey Karpov
One can often find discussions on the net that multicore processors, as well as parallelism, are needless, and all this is tricks of one (two or three) companies, which need to sell new...
...
Dec 24 2009
Program Errors That Do Not Exist
Andrey Karpov
Not long ago, one user of our code analyzer PVS-Studio addressed us; he was complaining about the work of the tool during the verification of one of his...
...
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