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Diffstat (limited to '_Programming_With_C/chapter14.ipynb')
| -rw-r--r-- | _Programming_With_C/chapter14.ipynb | 232 |
1 files changed, 0 insertions, 232 deletions
diff --git a/_Programming_With_C/chapter14.ipynb b/_Programming_With_C/chapter14.ipynb deleted file mode 100644 index d89e7c72..00000000 --- a/_Programming_With_C/chapter14.ipynb +++ /dev/null @@ -1,232 +0,0 @@ -{
- "metadata": {
- "name": ""
- },
- "nbformat": 3,
- "nbformat_minor": 0,
- "worksheets": [
- {
- "cells": [
- {
- "cell_type": "markdown",
- "metadata": {},
- "source": [
- "<h1>Chapter 14: Low-Level Programming<h1>"
- ]
- },
- {
- "cell_type": "markdown",
- "metadata": {},
- "source": [
- "<h3>Example 14.14, Page number: 14.12<h3>"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "\n",
- "a=0xf05a\n",
- "\n",
- "print \"%u\" %(a)\n",
- "print \"%x\" %(a>>6)"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "61530\n",
- "3c1\n"
- ]
- }
- ],
- "prompt_number": 1
- },
- {
- "cell_type": "markdown",
- "metadata": {},
- "source": [
- "<h3>Example 14.16, Page number: 14.13<h3>"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "\n",
- "\n",
- "a=1\n",
- "nbits=16\n",
- "m=0x1<<(nbits-1)\n",
- "\n",
- "def main(a):\n",
- " mask=abs(m)\n",
- " for count in range(1,nbits+1):\n",
- " if a&mask:\n",
- " b=1\n",
- " else:\n",
- " b=0\n",
- "\n",
- " print \"%x\" %(b),\n",
- " if count%4==0:\n",
- " print \"\\t\",\n",
- "\n",
- " mask>>=1\n",
- " return\n",
- "print \"\\n1-->\\n\"\n",
- "main(1)\n",
- "print \"\\n-1-->\\n\"\n",
- "main(-1)\n",
- "print \"\\n0-->\\n\"\n",
- "main(0)\n",
- "print \"\\n2-->\\n\"\n",
- "main(2)\n",
- "print \"\\n-2-->\\n\"\n",
- "main(-2)\n",
- "\n"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "\n",
- "1-->\n",
- "\n",
- "0 0 0 0 \t0 0 0 0 \t0 0 0 0 \t0 0 0 1 \t\n",
- "-1-->\n",
- "\n",
- "1 1 1 1 \t1 1 1 1 \t1 1 1 1 \t1 1 1 1 \t\n",
- "0-->\n",
- "\n",
- "0 0 0 0 \t0 0 0 0 \t0 0 0 0 \t0 0 0 0 \t\n",
- "2-->\n",
- "\n",
- "0 0 0 0 \t0 0 0 0 \t0 0 0 0 \t0 0 1 0 \t\n",
- "-2-->\n",
- "\n",
- "1 1 1 1 \t1 1 1 1 \t1 1 1 1 \t1 1 1 0 \t"
- ]
- }
- ],
- "prompt_number": 4
- },
- {
- "cell_type": "markdown",
- "metadata": {},
- "source": [
- "<h3>Example 14.23, Page Number: 14.20"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "\n",
- "from ctypes import *\n",
- "\n",
- "string=c_char*50\n",
- "\n",
- "\n",
- "def convert(mm,dd,yy):\n",
- " yy-=1900\n",
- " ndays=long(30.42*(mm-1)+dd)\n",
- " if mm==2:\n",
- " ndays+=1\n",
- " if mm>2 and mm<8:\n",
- " ndays-=1\n",
- " if yy%4==0 and mm<2:\n",
- " ndays+=1\n",
- "\n",
- " ncycles=yy/4\n",
- " ndays+=ncycles*1461\n",
- "\n",
- " nyears=yy%4\n",
- " if nyears>0:\n",
- " ndays+=365*nyears+1\n",
- " if ndays>59:\n",
- " ndays-=1\n",
- "\n",
- " day=ndays%7\n",
- " yy+=1900\n",
- " if yy%4==0 and yy%400!=0:\n",
- " day+=1\n",
- " return day\n",
- "\n",
- "\n",
- "class date(Structure):\n",
- "\t_fields_=[('month',c_int),('day',c_int),('year',c_int)]\n",
- "\t\n",
- "\n",
- "class person(Structure):\n",
- "\t_fields_=[('name',string),('birthdate',date)]\n",
- "\t\t\n",
- "student=[]\n",
- "\n",
- "weekday=['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday']\n",
- "\n",
- "month=['January','February','March','April','May','June','July','August',\\\n",
- " 'September','October','November','December']\n",
- "\n",
- "\n",
- "name='Rob Smith'\n",
- "birthdate=date(7,20,1972)\n",
- "student.append(person(name,birthdate))\n",
- "\n",
- "name='Judy Thompson'\n",
- "birthdate=date(11,27,1983)\n",
- "student.append(person(name,birthdate))\n",
- "\n",
- "name='Jim Williams'\n",
- "birthdate=date(12,29,1998)\n",
- "student.append(person(name,birthdate))\n",
- "\n",
- "name='Mort Davis'\n",
- "birthdate=date(6,10,2010)\n",
- "student.append(person(name,birthdate))\n",
- "\n",
- "\n",
- "\t\n",
- "for count in xrange(0,4):\n",
- " day_of_week=convert(student[count].birthdate.month,student[count].birthdate.day,student[count].birthdate.year)\n",
- " print student[count].name,\n",
- " print \" %s, %s %d %d \\n\" %(weekday[day_of_week],month[student[count].birthdate.month-1],student[count].birthdate.day,student[count].birthdate.year)\n"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Rob Smith Thursday, July 20 1972 \n",
- "\n",
- "Judy Thompson Sunday, November 27 1983 \n",
- "\n",
- "Jim Williams Tuesday, December 29 1998 \n",
- "\n",
- "Mort Davis Thursday, June 10 2010 \n",
- "\n"
- ]
- }
- ],
- "prompt_number": 5
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [],
- "language": "python",
- "metadata": {},
- "outputs": []
- }
- ],
- "metadata": {}
- }
- ]
-}
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