{
 "metadata": {
  "name": "",
  "signature": "sha256:af2735a34ebb2cb3c8a379aacf70cb46d8ee4a8ed09afacd9b5d0d21e0a0dd5a"
 },
 "nbformat": 3,
 "nbformat_minor": 0,
 "worksheets": [
  {
   "cells": [
    {
     "cell_type": "heading",
     "level": 1,
     "metadata": {},
     "source": [
      "Chapter 10 : Dynamic Memory Allocation"
     ]
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Example 10.1, Page No 229"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "import sys\n",
      "class employee:\n",
      "    def __init__(self,id1,name,salary):\n",
      "        self.id1 = id1\n",
      "        self.name = name\n",
      "        self.salary = salary\n",
      "e = employee(10,\"abc\",12000.02)\n",
      "x = 1\n",
      "f = 1.1\n",
      "d = 1111.11\n",
      "c = 'C'\n",
      "print \"Sizo of integer : \" + str(sys.getsizeof(x)) + \"bytes \\n\"\n",
      "print \"Sizo of float : \" + str(sys.getsizeof(f)) + \"bytes \\n\"\n",
      "print \"Sizo of double : \" + str(sys.getsizeof(d)) + \"bytes \\n\"\n",
      "print \"Sizo of char : \" + str(sys.getsizeof(c)) + \"bytes \\n\"\n",
      "print \"Sizo of employee structure : \" + str(sys.getsizeof(e)) + \"bytes \\n\""
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Sizo of integer : 24bytes \n",
        "\n",
        "Sizo of float : 24bytes \n",
        "\n",
        "Sizo of double : 24bytes \n",
        "\n",
        "Sizo of char : 34bytes \n",
        "\n",
        "Sizo of employee structure : 64bytes \n",
        "\n"
       ]
      }
     ],
     "prompt_number": 3
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Example 10.2, Page No 230"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "import sys\n",
      "array = []\n",
      "\n",
      "print \"\\nSize of array: \" + str(sys.getsizeof(array)) +  \"bytes\\n\"\n",
      "print \"Number of elements in array \"\n",
      "print str(sys.getsizeof(array) / sys.getsizeof(int)) + \"\\n\""
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n",
        "Size of array: 64bytes\n",
        "\n",
        "Number of elements in array \n",
        "0\n",
        "\n"
       ]
      }
     ],
     "prompt_number": 4
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Example 10.3, Page No 231"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# there is no malloc function"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 2
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Example 10.4, Page No 232"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# there is no malloc function"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 3
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Example 10.5, Page No 232"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# there is no malloc function"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 4
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Example 10.6, Page No 233"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# there is no malloc function\n",
      "#if name is None:\n",
      "#    print \"\\nOut of memory!\\n\"\n",
      "#else:\n",
      "#    print \"\\nMemory allocated.\\n\""
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 6
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Example 10.7, Page No 234"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# there is no malloc function\n",
      "#if name is not None:\n",
      "#    name = raw_input(\"Enter your name: \")\n",
      "#    print \"\\nHi \" + name + \"\\n\" "
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 7
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Example 10.8, Page No 235"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# there is no malloc function\n",
      "#if name is not None:\n",
      "#    name = raw_input(\"Enter your name: \")\n",
      "#    print \"\\nHi \" + name + \"\\n\"\n",
      "#    del name"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 10
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Example 10.9, Page No 236"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# there is no malloc function\n",
      "#if numbers is None:\n",
      "#    return\n",
      "#numbers[0] = 100\n",
      "#numbers[1] = 200\n",
      "#numbers[2] = 300\n",
      "#numbers[3] = 400\n",
      "#numbers[4] = 500\n",
      "#print \"\\nIndividual memory segments initialized to:\\n\"\n",
      "#for x in range(5):\n",
      "#    print \"numbers[\" +x+\"] = \\n\" + numbers[x]"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 16
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Example 10.10, Page No 237"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# there is no calloc function\n",
      "#if numbers is None:\n",
      "#    return"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 17
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Example 10.11, Page No 239"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# there is no malloc function\n",
      "#if numbers is None:\n",
      "#    print \"\\nOut of memory!\\n\"\n",
      "#    return\n",
      "#else:\n",
      "#    number = newNumber\n",
      "#    for x in range(10):\n",
      "#        numbers[x] = x * 10\n",
      "#    print \"\\nExpanded memory:\\n\"\n",
      "#    for x in range(10):\n",
      "#        print \"numbers[\" +x+\"] = \\n\" + numbers[x]\n",
      "#    del number"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 18
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Example 10.12, Page No 241"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "import random\n",
      "# there is no calloc function\n",
      "#time\n",
      "#print \"\\nMath Quiz\\n\\n\"\n",
      "#response = raw_input(\"Enter # of problems: \")\n",
      "#if op1 is None || op2 is None || answer is None ||result is None:\n",
      "#    print \"\\nOut of Memory!\\n\"\n",
      "#    return\n",
      "#for x in range(response):\n",
      "#    op1[x] = random.randint(1,200) % 100\n",
      "#    op2[x] = random.randint(1,200) % 100\n",
      "#    print \"\\n\" + op1[x] + \"+\" + op2[x]\"\n",
      "#    answer[x] = raw_input(\"\")\n",
      "#    if answer[x] == op1[x] + op2[x]:\n",
      "#        result[x] = 'c'\n",
      "#    else:\n",
      "#        result[x] = 'i'\n",
      "#print \"\\nQuiz Results\\n\"\n",
      "#print \"\\nQuestion\\tYour Answer\\tCorrect\\n\"\n",
      "#for x in range(response):\n",
      "#    if result[x] == 'c':\n",
      "#        print op1[x] + \"+\" + op2[x] + \"\\t\\t\" + answer[x] + \"\\t\\tYes\\n\"\n",
      "#    else:\n",
      "#        print op1[x] + \"+\" + op2[x] + \"\\t\\t\" + answer[x] + \"\\t\\tNo\\n\"\n",
      "#del op1\n",
      "#del op2\n",
      "#del answer\n",
      "#del result   "
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 20
    }
   ],
   "metadata": {}
  }
 ]
}