{
 "metadata": {
  "name": "",
  "signature": "sha256:53f00d75f5adfa37af0d8067426691c881e1b4ea1e38045c3a67a88230ca00f5"
 },
 "nbformat": 3,
 "nbformat_minor": 0,
 "worksheets": [
  {
   "cells": [
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "<h1>Chapter 22: The C++ Preprocessor<h1>"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "<h3>Example 22.1, Page Number: 550<h3>"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "\n",
      "def MIN(a,b):\n",
      "    if a<b:\n",
      "        return a\n",
      "    else:\n",
      "        return b\n",
      "\n",
      "#Variable declaration\n",
      "x=10\n",
      "y=20\n",
      "\n",
      "#Result\n",
      "print \"The minimum is\",MIN(x,y)"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "The minimum is 10\n"
       ]
      }
     ],
     "prompt_number": 2
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "<h3>Example 22.2, Page Number: 551<h3>"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "\n",
      "\n",
      "def EVEN(a):\n",
      "    if a%2==0:\n",
      "        return 1\n",
      "    else:\n",
      "        return 0\n",
      "\n",
      "if EVEN(9+1):\n",
      "    print \"is even\"\n",
      "else:\n",
      "    print \"is odd\""
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "is even\n"
       ]
      }
     ],
     "prompt_number": 3
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "<h3>Example 22.3, Page Number: 551<h3>"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "\n",
      "def EVEN(a):\n",
      "    if a%2==0:\n",
      "        return 1\n",
      "    else:\n",
      "        return 0\n",
      "\n",
      "if EVEN(9+1):\n",
      "    print \"is even\"\n",
      "else:\n",
      "    print \"is odd\""
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "is even\n"
       ]
      }
     ],
     "prompt_number": 4
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "<h3>Example 22.4, Page Number: 553<h3>"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "\n",
      "def MAX():\n",
      "    return 100\n",
      "\n",
      "if MAX()>10:\n",
      "    print \"Extra memory required.\"\n",
      "    "
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Extra memory required.\n"
       ]
      }
     ],
     "prompt_number": 5
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "<h3>Example 22.5, Page Number: 554<h3>"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "\n",
      "def MAX():\n",
      "    return 6\n",
      "\n",
      "if MAX()>10:\n",
      "    print \"Extra memory required.\"\n",
      "else:\n",
      "    print \"Current memory OK.\"\n",
      "    "
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Current memory OK.\n"
       ]
      }
     ],
     "prompt_number": 7
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "<h3>Example 22.6, Page Number: 556<h3>"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "\n",
      "def TOM():\n",
      "    pass\n",
      "\n",
      "\n",
      "try:\n",
      "    TOM()\n",
      "except NameError:\n",
      "    print \"Programmer is unknown.\"\n",
      "else:\n",
      "    print \"Programmer is Tom.\"\n",
      "    \n",
      "try:\n",
      "    RALPH()\n",
      "except NameError:\n",
      "    print \"RALPH not defined.\"\n",
      "    "
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Programmer is Tom.\n",
        "RALPH not defined.\n"
       ]
      }
     ],
     "prompt_number": 8
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "<h3>Example 22.7, Page Number: 558<h3>"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "\n",
      "import inspect\n",
      "\n",
      "#Returns the current line number in our program.\n",
      "def lineno():\n",
      "    return inspect.currentframe().f_back.f_lineno\n",
      "    \n",
      "print lineno()+200\n"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "209\n"
       ]
      }
     ],
     "prompt_number": 9
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "<h3>Example 22.8, Page Number: 559<h3>"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "\n",
      "\n",
      "def mkstr(s):\n",
      "    return str(s)\n",
      "\n",
      "#Result\n",
      "print mkstr('I like C++')\n"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "I like C++\n"
       ]
      }
     ],
     "prompt_number": 10
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "<h3>Example 22.9, Page Number: 560<h3>"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "\n",
      "def concat(a,b):\n",
      "    return a+b\n",
      "#Variable declaration\n",
      "xy=10\n",
      "\n",
      "#Result\n",
      "exec(\"print %s\")%concat('x','y')"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "10\n"
       ]
      }
     ],
     "prompt_number": 11
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [],
     "language": "python",
     "metadata": {},
     "outputs": []
    }
   ],
   "metadata": {}
  }
 ]
}