eienf’s gists

eienf / toBinary.swift

Created March 17, 2016 16:23

Binary String from Number types

	// toBinary
	func toBinary<T: UnsignedIntegerType>(value: T) -> String {
	let str = String(value, radix:2)
	let size = sizeofValue(value) * 8
	let padd = String(count: (size - str.characters.count), repeatedValue: Character("0"))
	return padd + str
	}
	func toBinary<T: _SignedIntegerType>(value: T) -> String {
	let size = sizeofValue(value) * 8
	let signed: IntMax = value.toIntMax()

eienf / KeikenJapan.html

Created August 7, 2015 13:42

	<html>
	<head>
	<script type="text/javascript" src="https://www.google.com/jsapi"></script>
	<script type="text/javascript">
	google.load("visualization", "1.1", {packages:["geochart"]});
	google.setOnLoadCallback(drawRegionsMap);

	function drawRegionsMap() {
	/* 0…未踏、1…通過、2…接地、3…訪問、4…宿泊、5…居住 */
	var data = google.visualization.arrayToDataTable([

eienf / NSInteger.m

Created April 10, 2015 08:38

printf format string for NSInteger

	#import <Foundation/Foundation.h>

	int main(int argc, const char * argv[]) {
	@autoreleasepool {
	NSInteger i = 101;
	NSLog(@"NSInteger %lu",sizeof(NSInteger));
	NSLog(@"long %lu",sizeof(long));
	NSLog(@"int %lu",sizeof(int));
	NSLog(@"%ld",(long)i);
	}

eienf / makeIcons.sh

Created March 6, 2015 17:11

Create various sizes of iPhone app icons with sips command.

eienf / CamelCase.m

Created June 22, 2013 13:12

convert camel case to/from snake case in Objective-C.

	#import <Foundation/Foundation.h>

	NSString toCamelCase(NSString s)
	{
	return [[[s capitalizedString] componentsSeparatedByCharactersInSet:[[NSCharacterSet characterSetWithCharactersInString:@"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"] invertedSet]] componentsJoinedByString:@""];
	}

	NSString splitOnCapital(NSString s) {
	NSRange upcaseRange = NSMakeRange('A', 26);
	NSRange numberRange = NSMakeRange('0', 10);

eienf / Convert2.java

Created May 16, 2013 15:47

	class Convert2 {
	public static void main(String args[]) {
	if ( args.length < 2 ) {
	throw new IllegalArgumentException("parameter : number_string radix");
	}
	String s = args[0];
	int radix = Integer.parseInt(args[1]);
	int decimal = Integer.parseInt(s,radix);
	System.out.println("result = "+decimal);
	}

eienf / Convert.java

Created May 16, 2013 15:46

convert Input : decimal number to the specific radix number string.

	class Convert {
	public static void main(String args[]) {
	if ( args.length < 2 ) {
	throw new IllegalArgumentException("parameter : decimal radix");
	}
	int decimal = Integer.parseInt(args[0]);
	int radix = Integer.parseInt(args[1]);
	String s = Integer.toString(decimal,radix);
	System.out.println("result = "+s);
	}

eienf / Decimal.java

Created May 15, 2013 08:49

Algorithm for convert binary string to decimal integer.

	class Decimal {
	public static long toLong(String bin) {
	long decimal = 0;
	for ( int i = 0; i < bin.length(); i++ ) {
	if ( bin.substring(i,i+1).equals("1") ) {
	decimal <<= 1;
	decimal += 1;
	} else if ( bin.substring(i,i+1).equals("0") ) {
	decimal <<= 1;
	} else if ( bin.substring(i,i+1).equals(" ") ) {

eienf / bin2dec.c

Last active October 29, 2023 08:58

from binary string to decimal integer.

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

	unsigned long bin2dec(const char *binary)
	{
	unsigned long decimal = 0;
	do {
	if ( *binary == '0' ) {
	decimal <<= 1;
	} else if ( *binary == '1' ) {

eienf / time_dec2bin.c

Last active December 17, 2015 05:48

Time mesurement for decimal to binary change function.

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