dbremner

//taken from https://resharper-support.jetbrains.com/hc/en-us/community/posts/206650785-Can-I-handle-not-initialized-warnings-with-Jetbrains-Annotations-
[ContractAnnotation("=> false, target:null; => true, target:notnull")]
private bool TryFindWorkbook([NotNull] Excel.Workbooks workbooks, [CanBeNull] out Excel.Workbook target)
{
    Requires.NotNull(workbooks, nameof(workbooks));

    foreach (Excel.Workbook workbook in workbooks)
    {
        if (workbook.Name == cellLocation.WorkBookName)
        {

dbremner

template<class T, T invalid_value=nullptr>
struct handle_traits_base
{
	using pointer = T;
	inline static pointer invalid() throw()
	{
		return invalid_value;
	}
};

dbremner

#pragma once

template<class T, T InvalidValue = nullptr>
struct HandleTraitsBase
{
	using Type = T;
	inline static Type GetInvalidValue() noexcept
	{
		return InvalidValue;
	}

dbremner

iolanthe:smhasher dbremner$ cd build
iolanthe:build dbremner$ ./SMHasher pearson_hash
-------------------------------------------------------------------------------
--- Testing pearson_hash "http://calypsosfarewell.blogspot.com/2018/01/toy-code-hand-crafting-good-hash.html"

[[[ Sanity Tests ]]]

Verification value 0x5AA86F6C : PASS
Running sanity check 1    ..........PASS
Running AppendedZeroesTest..........PASS

dbremner

#include "vec.h"

int main(void) {
  Vec* vec = vec_new();
  //vec is a pointer to a struct of an unknown type
  //so the compiler will not allow bugs 6 and 7 to occur.
  vec_push(vec, 107);
  vec_push(vec, 110);
  vec_free(vec);
}

dbremner

#define WIN32_LEAN_AND_MEAN
#define NOGDICAPMASKS
#define NOVIRTUALKEYCODES
#define NOWINMESSAGES
#define NOWINSTYLES
#define NOSYSMETRICS
#define NOMENUS
#define NOICONS
#define NOKEYSTATES
#define NOSYSCOMMANDS

dbremner

var a = BitConverter.Int64BitsToDouble(BitConverter.ToInt64(BitConverter.GetBytes(0xFFF8000000000000), 0));

var b = BitConverter.Int64BitsToDouble(BitConverter.ToInt64(BitConverter.GetBytes(0xFFF8000000000001), 0));

Console.WriteLine(a == b);

Console.WriteLine(a.Equals(b));

Console.WriteLine(a.Equals((object)b));

dbremner

// Steven Toub wrote this in https://github.com/dotnet/corefx/issues/1793#issuecomment-151584410
// I have made only minor changes.

using System;
using System.Diagnostics;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Threading.Tasks;

dbremner

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

int f1(int num)
{
    const int result = abs(num) - num;
    return result;
}

dbremner

Problem:
Time Machine backups accumulate until they fill the drive.

Solution:
1. Run "tmutil listbackups" from a shell and pipe the output to a file.
2. Use TextEdit pattern-based search and replace to quote each line of the file.
3. Select a subset of the file with a buffer of several years.
4. Open a terminal and run caffeinate to keep the computer from sleeping.
5. Open an interactive root shell with "sudo -i"
6. Use the following command to delete old backups.