Czym jest medytacja? Jak medytować? Popularne techniki medytacji.

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W codziennym życiu koncentrujemy się na otaczającym nas świecie, gdy jesteśmy w pracy zajmujemy sie pracą, gdy jedziemy autobusem patrzymy na świat za oknem, a gdy rozmawiamy z kimś, to słuchamy go i współuczestniczymy w rozmowie. To normalne zachowanie, dzięki któremu możemy utrzymywać się materialnie,...

How to use finite state machine in parsing of assembly language?

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Finite State Machine - abstract Often data must be analyzed chunk by chunk, checked if all of those chunks are valid (if the chunk is valid itself and if it's valid in context of previous chunks) and when some actions must be taken according to each type of this chunks. This can be easily modeled using...

How to use regular diode as a photo-element?

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There are special diodes, transistors and resistors designed to measure light intensity, sometimes even a regular LED is also used for this task, can be used. I was wondering, if any diode (in a package that doesn't block light rays) could be used? Today I will share the results of my experiments...

Mistakes during checking if a returned value is null

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This is a bit modified real word example, found by tool for static analysis. In this code, foo() is a function that returns pointer to std::string or null pointer. std::cout << foo()->length() << std::endl; There's obvious bug here: executing length() method on value returned by foo()...
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