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How to search through all Git and Mercurial commits in the repository for a certain string?

... repository with few branches and dangling commits. I would like to search all such commits in repository for a specific string. ...
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Equivalent of typedef in C#

...impact that source file. In C and C++, my experience is that typedef is usually used within .h files which are included widely - so a single typedef can be used over a whole project. That ability does not exist in C#, because there's no #include functionality in C# that would allow you to include th...
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Meaning of “[: too many arguments” error from if [] (square brackets)

... # if [ hello world == 0 ] fi The same will be true for any function call that puts down a string containing spaces or other special characters. Easy fix Wrap the variable output in double quotes, forcing it to stay as one string (therefore one argument). For example, VARIABLE=$(/some/comm...
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What is the main difference between Inheritance and Polymorphism?

...class, then you have a Student class that extends Person, Student inherits all the things that Person has. There are some details around the access modifiers you put on the fields/methods in Person, but that's the basic idea. For example, if you have a private field on Person, Student won't see it...
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How to test if a double is an integer

... I really love the simplicity of this solution. It's both easy to read and to implement. – krispy Feb 27 '14 at 21:03 ...
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Why should I use a pointer rather than the object itself?

... It's very unfortunate that you see dynamic allocation so often. That just shows how many bad C++ programmers there are. In a sense, you have two questions bundled up into one. The first is when should we use dynamic allocation (using new)? The second is when should w...
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How do you change Background for a Button MouseOver in WPF?

...Triggers> </Style> EDIT: It's a few years late, but you are actually able to set the border brush inside of the border that is in there. Idk if that was pointed out but it doesn't seem like it was... share ...
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Make xargs handle filenames that contain spaces

... For OS X, you can "brew install findutils", which gives you the "gxargs" command that does have the -d switch. – Tom De Leu Mar 16 '18 at 9:37 ...
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Reverting a single file to a previous version in git [duplicate]

..., and we want to revert the file to one of the previous versions. First of all, git doesn't keep version numbers for individual files. It just tracks content - a commit is essentially a snapshot of the work tree, along with some metadata (e.g. commit message). So, we have to know which commit has th...
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Is it feasible to compile Python to machine code?

... There are several options: Use Psyco, which emits machine code dynamically. You should choose carefully which methods/functions to convert, though. Use Cython, which is a Python-like language that is compiled into a Python C extension Use PyPy, which has a translator from RPython (a restricted ...