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How to Parse Command Line Arguments in C++? [duplicate]

...d option has been passed in like -h for help. #include <algorithm> char* getCmdOption(char ** begin, char ** end, const std::string & option) { char ** itr = std::find(begin, end, option); if (itr != end && ++itr != end) { return *itr; } return 0; } b...
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URL encoding in Android

... This method doesn't encode characters like ğ to %C4%9F. Accepted one encodes! – Alexander Prokofyev May 30 '15 at 15:11 ...
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Generate a random letter in Python

...tates If the relative weights or cumulative weights are not specified, the selections are made with equal probability. This would mean, that the distribution is the discrete uniform distribution (en.wikipedia.org/wiki/Discrete_uniform_distribution). – Qaswed Oc...
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Convert character to ASCII numeric value in java

I have String name = "admin"; then I do String charValue = name.substring(0,1); //charValue="a" 22 Answers ...
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Read whole ASCII file into C++ std::string [duplicate]

... std::ifstream t("file.txt"); std::string str((std::istreambuf_iterator<char>(t)), std::istreambuf_iterator<char>()); Not sure where you're getting the t.open("file.txt", "r") syntax from. As far as I know that's not a method that std::ifstream has. It looks like you'v...
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Delete last char of string

...oupids.Length - 1); MSDN: String.Remove(Int32): Deletes all the characters from this string beginning at a specified position and continuing through the last position share | improve t...
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Given an emacs command name, how would you find key-bindings ? (and vice versa)

...d bound to a keyboard shortcut (or a key sequence in Emacs terms), see the selected answer. For programmatically getting the command bound to a given key sequence, use the function key-binding or lookup-key that takes a key sequence and returns its bound command. The function key-binding is what C-...
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Integrating the ZXing library directly into my Android application

...... Navigate to the newly extracted folder and open the core directory and select core.jar ... hit enter! Now you just have to correct a few errors in the translations and the AndroidManifest.xml file :) Now you can happily compile, and you will now have a working standalone barcode scanner app, b...
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Is it better in C++ to pass by value or pass by constant reference?

...ractice1 to use pass by const ref for all types, except for builtin types (char, int, double, etc.), for iterators and for function objects (lambdas, classes deriving from std::*_function). This was especially true before the existence of move semantics. The reason is simple: if you passed by value...
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How to check if a line is blank using regex

... answer missed many empty lines in my file, but this caught them all. The union of both regexes catches every case. – elmor Oct 5 '17 at 0:16 ...