ashwin

// Example output from this code:
// Tue Jan 13 12:09:53 2015 (from ctime)
// 20150113_12_09_53 (from strftime)
// 20150113_12_09_53 (from put_time)

#include <ctime>
#include <chrono>
#include <iomanip>

// Get current time

ashwin

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layout]
"Scancode Map"=hex:00,00,00,00,00,00,00,00,02,00,00,00,00,00,3a,00,00,00,00,00

ashwin

// Checking for math error in C++

#include <cerrno>
#include <cmath>
#include <cstring>
#include <iostream>

std::cout << log(0) << std::endl;
if (errno)
    std::cout << std::strerror(errno) << std::endl;

ashwin

# Class to execute a function in parallel across multiple data
# Adapted from code in Sec 9.5 of book Python Cookbook (2 Ed)

import threading
import time
import Queue

class MultiThread(object):

    def __init__(self, function, argsVector, commonArgs, maxThreads=5, queue_results=False):

ashwin

# Sample code to write data of certain format to binary file
# For details of parameters passed to pack method see:
# https://docs.python.org/2/library/struct.html

import struct

# Assume these are values of fields of a class/struct in C/C++
a = 1  # unsigned int
b = 2  # signed char
c = -1 # signed int

ashwin

# Helps define a constant in Python
# From Section 6.3: Defining Constants
# Python Cookbook (2 Ed) by Alex Martelli et al.
#
# Usage:
# import const
# const.magic = 23 # First binding is fine
# const.magic = 88 # Second binding raises const.ConstError

class _const:

ashwin

// Sample code to demonstrate emplace_back operation of vector

#include <iostream>
#include <vector>

struct Creature
{
    Creature() : is_mammal_(false), age_(0), population_(0)
    {
        std::cout << "Default constructor called\n";

ashwin

// Sample C++ code to illustrate usage of std::shared_ptr
// Compile with --std=c++11 option

#include <iostream>
#include <memory>

class Foo
{
    public:

ashwin

# Check if Qt4 is present
find_package(Qt4 REQUIRED)

# Add Qt headers for compiling
include(
    ${QT_USE_FILE}
    )

# Add Qt definitions for compilation
add_definitions(

ashwin

# Add this to your ~/.config/fish/config.fish
function ranger-cd
    set tmpfile "/tmp/pwd-from-ranger"
    ranger --choosedir=$tmpfile $argv
    set rangerpwd (cat $tmpfile)
    if test "$PWD" != $rangerpwd
        cd $rangerpwd
    end
end