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How do I do base64 encoding on iOS?

... good use case for Objective C categories. For Base64 encoding: #import <Foundation/NSString.h> @interface NSString (NSStringAdditions) + (NSString *) base64StringFromData:(NSData *)data length:(int)length; @end ------------------------------------------- #import "NSStringAdditions.h" ...
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Android ViewPager with bottom dots

... coding so much by using only viewpager with tablayout. Your main Layout: <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="wrap_content"> &lt...
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How do I align views at the bottom of the screen?

...tionButton that will be aligned to the end and the bottom of the screen. <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:...
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round() for float in C++

...p://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3337.pdf) #include <cmath> #include <iostream> int main(int argc, char** argv) { std::cout << "round(0.5):\t" << round(0.5) << std::endl; std::cout << "round(-0.5):\t" << round(-0.5) << std::e...
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HSL to RGB color conversion

...htness * @return {Array} The RGB representation */ function hslToRgb(h, s, l){ var r, g, b; if(s == 0){ r = g = b = l; // achromatic }else{ var hue2rgb = function hue2rgb(p, q, t){ if(t < 0) t += 1; if(t > 1) t -= 1; ...
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Is there an IDictionary implementation that, on missing key, returns the default value instead of th

...Is there an implementation of IDictionary that instead will return default(T) ? 15 Answers ...
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HTML table headers always visible at top of window when viewing a large table

... i've built a huge demo / docs page. Why do you need a fiddle? – mkoryak Mar 24 '14 at 16:55 5 ...
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Conversion of System.Array to List

..... using System.Linq; int[] ints = new [] { 10, 20, 10, 34, 113 }; List<int> lst = ints.OfType<int>().ToList(); // this isn't going to be fast. Can also just... List<int> lst = new List<int> { 10, 20, 10, 34, 113 }; or... List<int> lst = new List<int>(); ...
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How do I tokenize a string in C++?

...t this would be convenient. But what would its return type be? std::vector<std::basic_string<…>>? Maybe, but then we’re forced to perform (potentially redundant and costly) allocations. Instead, C++ offers a plethora of ways to split strings based on arbitrarily complex delimiters, ...
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How to convert wstring into string?

... Here is a worked-out solution based on the other suggestions: #include <string> #include <iostream> #include <clocale> #include <locale> #include <vector> int main() { std::setlocale(LC_ALL, ""); const std::wstring ws = L"ħëłlö"; const std::locale locale("...