William superwills

C/C++(11/14/17) * Objective-C/C++ * C# * Java * JavaScript * Python * SQL * PHP * DirectX * OpenGL * GLSL/HLSL * WSH * Cg * BASH * Nintendo * PS4

superwills / OpenSSL RSA encryption sample

Last active November 2, 2022 09:45

Base64 encoding and RSA encryption sample

	#include <stdio.h>
	#include <string.h>
	#include <stdlib.h>
	#include <ctype.h>
	#include <openssl/rsa.h>
	#include <openssl/engine.h>
	#include <openssl/pem.h>

	// I'm not using BIO for base64 encoding/decoding. It is difficult to use.
	// Using superwills' Nibble And A Half instead

superwills / OpenSSL to OpenSSH public key format

Last active December 16, 2015 10:29

Mounir IDRASSI's conversion from OpenSSL to OpenSSH public key format http://www.idrix.fr/Root/Samples/pubkey2ssh.c

	/*
	* An implementation of convertion from OpenSSL to OpenSSH public key format
	*
	* Copyright (c) 2008 Mounir IDRASSI <[email protected]>. All rights reserved.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
	* or FITNESS FOR A PARTICULAR PURPOSE.
	*
	*/

superwills / map reverse

Last active December 16, 2015 15:39

Reverses a mapping of map: T -> vector<S> to map: S -> vector<T>

	// Reverses a mapping of map: T -> vector<S> to map: S -> vector<T>
	template<typename T, typename S>
	void reverseMapping( map< T, vector<S> >& oMapping, map< S, vector<T> >& revMapping )
	{
	for( typename map< T, vector<S> >::iterator iter = oMapping.begin() ; iter != oMapping.end() ; ++iter )
	{
	for( int i = 0 ; i < iter->second.size() ; i++ )
	{
	pair< typename map< S, vector<T> >::iterator, bool > res =
	revMapping.insert( make_pair( iter->second[i], vector<T>() ) ) ;

superwills / XCodeC++Theme

Created April 25, 2013 19:12

XCode C++ color theme

	<?xml version="1.0" encoding="UTF-8"?>
	<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
	<plist version="1.0">
	<dict>
	<key>DVTConsoleDebuggerInputTextColor</key>
	<string>0 0 0 1</string>
	<key>DVTConsoleDebuggerInputTextFont</key>
	<string>Menlo-Regular - 12.0</string>
	<key>DVTConsoleDebuggerOutputTextColor</key>
	<string>0 0 0 1</string>

superwills / Point in Polygon

Last active September 7, 2019 15:15

Pt In Poly simple algorithm. Works for convex & concave polygons.

	#include <stdlib.h> // MUST BE BEFORE GLUT ON WINDOWS

	#ifdef _WIN32
	#include <gl/glut.h>
	#else
	#include <GLUT/glut.h>
	#include <OpenGL/gl.h>
	#include <OpenGL/glu.h>
	#endif

superwills / getopt.c

Last active August 17, 2024 16:01

getopt.h / getopt.c, from http://www.raspberryginger.com/jbailey/minix/html/lib_2posix_2getopt_8c-source.html

	// Put this in a separate .h file (called "getopt.h").
	// The prototype for the header file is:
	/*
	#ifndef GETOPT_H
	#define GETOPT_H

	int getopt(int nargc, char * const nargv[], const char *ostr) ;

	#endif
	*/

superwills / Hugely readable table drawing characters

Last active December 20, 2015 16:09

Hugely readable table drawing characters

	From http://en.wikipedia.org/wiki/Box-drawing_character

	┘ ┐ ┌ └ ┼ ─ ├ ┤ ┴ ┬ │ • × ⌘ π √ ÷ ² ³ ¼ ½ ¾

	A matrix:
	┌ ┐
	│ 1 0 0 │
	│ 0 1 0 │
	│ 0 0 1 │
	└ ┘

superwills / Callback.h

Created August 14, 2013 17:01

Callback.h -- C++ callbacks

	#ifndef CALLBACK_H
	#define CALLBACK_H

	#include <functional>
	using namespace std ;

	// REQUIRES APPLE LLVM
	//Under Apple LLVM compiler 4.0 - Language,
	// - C++ Standard Library: choose libc++ (LLVM C++ standard with C++11 support)
	// NOT GNU

superwills / KeychainSimple.cpp

Last active November 28, 2016 10:26

Call `testKeychain()` from application `didFinishLaunchingWithOptions` or something to run this test code.

	bool SecCheck( OSStatus res, const char* msg )
	{
	if( res==errSecSuccess )
	{
	printf( "< %s okie dokie >\n", msg ) ; // COMMENT THIS OUT TO SILENCE OK's
	}
	else
	{
	printf( "< NOT OK!! >: %s FAILED:\n >> ", msg ) ;
	switch( res )

superwills / Keychain.hpp

Created October 11, 2013 18:05

SecCRUD operations (SecCreate, SecRead, SecUpdate, SecDelete) for serialization of binary objects with primitive-typed data in them.

	#ifndef KEYCHAIN_H
	#define KEYCHAIN_H

	/*

	kSecAttrAccessible - A CFTypeRef (opaque) value that indicates when your app
	needs access to the data in a keychain item. You should choose the
	most restrictive option that meets your app’s needs so that iOS can protect
	that item to the greatest extent possible. For a list of possible values,
	see “Keychain Item Accessibility Constants.”