Dean Butcher ButchDean

💻

Well, it works on my docker container! ¯\_(ツ)_/¯

Senior Software Engineer: Ex-game developer now working on weather forecasting. Works with graphics, concurrent/parallel algorithms. Recreational physicist.

37 followers · 102 following

Toronto, Ontario, Canada
http://ButchDean.github.io
in/deannbutcher

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ButchDean / RN2DEC.cpp

Last active December 29, 2017 20:21

Code to convert Roman Numerals to Decimals. (RN2DEC created by ButchDean72 - https://repl.it/@ButchDean72/RN2DEC)

	#include <cstdio>
	#include <unordered_map>
	#include <vector>
	#include <cstring>
	#include <memory>

	const std::string sample = "MCMLXXII";

	struct ROMAN_NUMERALS
	{

ButchDean / SSETest.cpp

Created December 29, 2016 04:54

SSE test/sample code from Game Engine Architecture by Jason Gregory

	#include <cstdio>
	#include <xmmintrin.h>

	__m128 addWithAssembly(const __m128 a, const __m128 b)
	{
	__asm addps xmm0, xmm1
	}

	__m128 addWithIntrinsics(const __m128 a, const __m128 b)
	{

ButchDean / boo.c

Last active May 23, 2016 22:01

A countdown timer handy for many things.

	#include <stdio.h>
	#include <time.h>

	int main()
	{
	time_t start, now;
	double secs = 0.0;
	int timercountdown = 10;

	start = now = time(NULL);

ButchDean / palindromicNum.cpp

Created January 6, 2016 01:43

Demo code inspired by Project Euler to determine if a number is palindromic.

	#include <cstdio>
	#include <cstdlib>
	#include <cmath>
	#include <vector>

	int main(int argc, char* argv[])
	{
	if(argc == 1)
	return 0;

ButchDean / runfuncslambda.cpp

Last active August 29, 2015 14:19

C++11 lambda-based function execution example. Awesome for test harness.

	#include <cstdio>
	#include <vector>
	#include <algorithm>

	typedef void (*func)();

	void Func1()
	{
	std::puts("Func1() called.");
	}

ButchDean / my_atoi.c

Last active August 29, 2015 14:12

An efficient solution to convert a signed number character string to a signed int. Was going to put it up on Stack Overflow, but the question was closed as duplicate.

	#include <stdio.h>
	#include <string.h>
	#include <math.h>

	int my_atoi(const char* snum)
	{
	int idx, strIdx = 0, accum = 0, numIsNeg = 0;
	const unsigned int NUMLEN = (int)strlen(snum);

	/* Check if negative number and flag it. */

ButchDean / ToRoman.c

Last active December 28, 2015 13:39

Code to convert a decimal into its equivalent Roman numeral string.

	#include <stdio.h>
	#include <string.h>

	#define MAX_ROMAN_NUMERALS 100

	struct ROMAN_NUMERALS
	{
	char letter;
	int value;
	};

ButchDean / ConvertToBase.cpp

Created November 17, 2013 04:52

This piece of code makes use of the STL vector and map to convert a number from base 10 to any other base in the range 2-36. This code demonstrates the power of the STL in defining quite complicated structures efficiently, as well as saving on many lines of extra code in making use of such structures.

	#include <iostream>
	#include <vector>
	#include <map>
	using namespace std;

	class CBaseConverter
	{
	public:

	CBaseConverter(){}

ButchDean / NumDigits.c

Last active December 25, 2015 20:19

Non-iterative approach to finding the number of digits in an integer. Also works for both positive and negative numbers.

	#include <stdio.h>
	#include <math.h>
	#include <stdlib.h>

	int main(int argc, char** argv)
	{
	int digits;

	digits = (atoi(argv[1]) == 0) ? 1 : (int)log10(abs(atoi(argv[1]))) + 1;