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How to open, read, and write from serial port in C?

...ust copy and paste the bits needed into each project. You must call cfmakeraw on a tty obtained from tcgetattr. You cannot zero-out a struct termios, configure it, and then set the tty with tcsetattr. If you use the zero-out method, then you will experience unexplained intermittent failures, especi...
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A non-blocking read on a subprocess.PIPE in Python

... Absolutely brilliant. Much easier than the raw subprocess module. Works perfectly for me on Ubuntu. – Cerin Dec 2 '10 at 12:30 14 ...
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What to learn for making Java web applications in Java EE 6? [closed]

.... I've found the Head First books to be pretty good. For web programming, raw Servlets are important enough just to understand the request/response cycle but you don't need a deep understanding to make a leap to a 3rd party framework. I'm a big fan of Stripes for an Action framework (vs a componen...
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How to find/identify large commits in git history?

...is not available on macOS, you can either omit the last line and deal with raw byte sizes or brew install coreutils. Filtering To achieve further filtering, insert any of the following lines before the sort line. To exclude files that are present in HEAD, insert the following line: | grep -vF --...
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Why do we copy then move?

...se, there will always be a single copy performed. If you construct from a raw C string, a std::string will be constructed, then copied again: two allocations. There is the C++03 method of taking a reference to a std::string, then swapping it into a local std::string: struct S { std::string data...
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iOS UIImagePickerController result image orientation after upload

... which instructs the UIImageView and other UIImage consumers to rotate the raw image data. There's a good chance that this flag is being saved to the exif data in the uploaded jpeg image, but the program you use to view it is not honoring that flag. To rotate the UIImage to display properly when up...
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When is std::weak_ptr useful?

...tr is a very good way to solve the dangling pointer problem. By just using raw pointers it is impossible to know if the referenced data has been deallocated or not. Instead, by letting a std::shared_ptr manage the data, and supplying std::weak_ptr to users of the data, the users can check validity o...
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Why does std::getline() skip input after a formatted extraction?

...to true by this function is because the point of std::getline() is to read raw, unformatted characters into a std::basic_string<charT> object. The Solution: There's no way to stop this behavior of std::getline(). What you'll have to do is discard the new line yourself before std::getline() ru...
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How is std::function implemented?

...(with an additional parameter that tells what to do) as to save some bytes raw pointers are used to store the functor object, along with a function pointer in a union, so that when a function object is constructed from an function pointer, it will be stored directly in the union rather than heap spa...
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Beyond Stack Sampling: C++ Profilers

... visualization has pointed out the offending function(s), jump back to the raw profile data to get better hints on what the real cause is. The gprof2dot tool generates a dot graph description that you then feed into a graphviz tool. The output is basically a callgraph with functions color coded by ...