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Returning binary file from controller in ASP.NET Web API

...rn result; } A few things to note about the stream used: You must not call stream.Dispose(), since Web API still needs to be able to access it when it processes the controller method's result to send data back to the client. Therefore, do not use a using (var stream = …) block. Web API will di...
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How to open, read, and write from serial port in C?

...en), and just 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 failur...
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编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...

...这并不是应该由编译器该干的活。这行语句会变成对函数_CxxThrowException (函数来自MSVCR100.dll或其他类似版本的dll)的调用。 这个函数有编译器内部构建。你喜欢的话,你可以自己调用它。这个函数的第一个参数是指向抛出的异常...
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subtle differences between JavaScript and Lua [closed]

...= operators are of lower precedence than >, >=, <, <=. In Lua, all comparison operators are the same precedence. Lua supports tail calls. UPDATE: JS now supports tail calls. Lua supports assignment to a list of variables. While it isn't yet standard in Javascript, Mozilla's JS engine ...
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What are the differences between .so and .dylib on osx?

...xecutables and libraries distinguishes between shared libraries and dynamically loaded modules. Use otool -hv some_file to see the filetype of some_file. Mach-O shared libraries have the file type MH_DYLIB and carry the extension .dylib. They can be linked against with the usual static linker flags...
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How do I override __getattr__ in Python without breaking the default behavior?

I want to override the __getattr__ method on a class to do something fancy but I don't want to break the default behavior. ...
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What is the syntax rule for having trailing commas in tuple definitions?

... In all cases except the empty tuple the comma is the important thing. Parentheses are only required when required for other syntactic reasons: to distinguish a tuple from a set of function arguments, operator precedence, or to a...
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Learning Python from Ruby; Differences and Similarities

... [x*x for x in values if x > 15] to get a new list of the squares of all values greater than 15. In Ruby, you'd have to write the following: values.select {|v| v > 15}.map {|v| v * v} The Ruby code doesn't feel as compact. It's also not as efficient since it first converts the values a...
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Implementing slicing in __getitem__

... The __getitem__() method will receive a slice object when the object is sliced. Simply look at the start, stop, and step members of the slice object in order to get the components for the slice. >>> class C(object): ......
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How to check if a user likes my Facebook Page or URL using Facebook's API

...xample, the act of liking a Page or checking in to a Place cannot automatically register or enter a promotion participant." - facebook.com/promotions_guidelines.php – Chris Jacob May 18 '11 at 1:25 ...