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'printf' vs. 'cout' in C++

...letely on operator overloading, so there is no issue with custom formats - all you do is define a subroutine taking std::ostream as the first argument and your type as second. As such, there are no namespace problems - as long you have a class (which isn't limited to one character), you can have wor...
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How to remove illegal characters from path and filenames?

...gal path into a legitimate but probably unintended one. Edit: Or a potentially 'better' solution, using Regex's. string illegal = "\"M\"\\a/ry/ h**ad:>> a\\/:*?\"| li*tt|le|| la\"mb.?"; string regexSearch = new string(Path.GetInvalidFileNameChars()) + new string(Path.GetInvalidPathChars()); ...
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What are the applications of binary trees?

...ningless - they are not a data structure, but a family of data structures, all with different performance characteristics. While it is true that unbalanced binary trees perform much worse than self-balancing binary trees for searching, there are many binary trees (such as binary tries) for which "b...
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How can I maintain fragment state when added to the back stack?

... back stack. However, when I return to FragmentA (by pressing back), a totally new FragmentA is created and the state it was in is lost. I get the feeling I'm after the same thing as this question, but I've included a complete code sample to help root out the issue: ...
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PHP passing $_GET in linux command prompt

Say we usually access via 13 Answers 13 ...
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Select count(*) from multiple tables

How can I select count(*) from two different tables (call them tab1 and tab2 ) having as result: 18 Answers ...
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What does “#define _GNU_SOURCE” imply?

... For exact details on what are all enabled by _GNU_SOURCE, documentation can help. From the GNU documentation: Macro: _GNU_SOURCE If you define this macro, everything is included: ISO C89, ISO C99, POSIX.1, POSIX.2, BSD, SVID, X/Open, LFS, and ...
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What is the advantage of GCC's __builtin_expect in if else statements?

... I guess it should be something like: cmp $x, 0 jne _foo _bar: call bar ... jmp after_if _foo: call foo ... after_if: You can see that the instructions are arranged in such an order that the bar case precedes the foo case (as opposed to the C code). This can utilise the CPU ...
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Bundling data files with PyInstaller (--onefile)

I'm trying to build a one-file EXE with PyInstaller which is to include an image and an icon. I cannot for the life of me get it to work with --onefile . ...
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Short description of the scoping rules?

... Actually, a concise rule for Python Scope resolution, from Learning Python, 3rd. Ed.. (These rules are specific to variable names, not attributes. If you reference it without a period, these rules apply.) LEGB Rule Local — N...