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Can I call a base class's virtual function if I'm overriding it?

... This is a better answer than the selected one. Thanks. – Mad Physicist Oct 17 '14 at 20:41 ...
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How do I create a unique ID in Java? [duplicate]

...ignificantBits()); } private static String toIDString(long i) { char[] buf = new char[32]; int z = 64; // 1 << 6; int cp = 32; long b = z - 1; do { buf[--cp] = DIGITS66[(int)(i & b)]; i >>>= 6; } while (i != 0); re...
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Extract digits from a string in Java

...t probably faster: public static String stripNonDigits( final CharSequence input /* inspired by seh's comment */){ final StringBuilder sb = new StringBuilder( input.length() /* also inspired by seh's comment */); for(int i = 0; i < input.length(); i++){ fi...
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How can I get a file's size in C++? [duplicate]

... #include <fstream> std::ifstream::pos_type filesize(const char* filename) { std::ifstream in(filename, std::ifstream::ate | std::ifstream::binary); return in.tellg(); } See http://www.cplusplus.com/doc/tutorial/files/ for more information on files in C++. edit: this answ...
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Listen for key press in .NET console app

...tic void ProcessFiles() { var files = Enumerable.Range(1, 100).Select(n => "File" + n + ".txt"); var taskBusy = new Task(BusyIndicator); taskBusy.Start(); foreach (var file in files) { Thread.Sleep(1000); Console.WriteLine("Pro...
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Why is it slower to iterate over a small string than a small list?

...string took longer than doing the same operation on a list of small single character strings. Any explanation? It's almost 1.35 times as much time. ...
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Converting an int to std::string

... int length = snprintf( NULL, 0, "%d", x ); assert( length >= 0 ); char* buf = new char[length + 1]; snprintf( buf, length + 1, "%d", x ); std::string str( buf ); delete[] buf; return str; } You can do more with it. Just use "%g" to convert float or double to string, use "%x" to co...
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What are transparent comparators?

...ast, works for std::string which has overloaded less than operators taking char const* as argument. Since these function objects are also new, even if they do the wrong thing (i.e. require a conversion for some type) it would, at least, not be a silent change resulting in a performance degradation. ...
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What is the default initialization of an array in Java?

...t is a 0. For float/double that is a 0.0 For booleans that is a false. For char that is the null character '\u0000' (whose decimal equivalent is 0). When you create an array of something, all entries are also zeroed. So your array contains five zeros right after it is created by new. Note (based...
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How do I detect unsigned integer multiply overflow?

... addcarry_u8 or subborrow_u64). Their signature is a bit obtuse: unsigned char _addcarry_u32(unsigned char c_in, unsigned int src1, unsigned int src2, unsigned int *sum); unsigned char _subborrow_u32(unsigned char b_in, unsigned int src1, unsigned int src2, unsigned int *diff); c_in/b_in is the c...