MPI and C-Language Seminars 2010

Size: px
Start display at page:

Download "MPI and C-Language Seminars 2010"

Transcription

1 MPI and C-Language Seminars 2010

2 Seminar Plan (1/3) Aim: Introduce the C Programming Language. Plan to cover: Basic C, and programming techniques needed for HPC coursework. C-bindings for the Message Passing Interface (MPI). Performance modelling. We won t be covering C++ (but many of the skills are transferable).

3 Seminar Plan (2/3) Week 1 Introduction, Data Types, Control Flow, Pointers Week 2 Arrays, Structures, Enums, I/O, Memory Week 3 Compiler Options and Debugging Week 4 MPI in C and Using the HPSG Cluster Week 5 How to Build a Performance Model Week 6-9 Coursework Troubleshooting (Seminar tutors available in their office)

4 Seminar Plan (3/3) The first three weeks focus on developing basic C skills; much of this will be familiar. Feel free to skip this if you already feel confident. Unless you have done this course before, or are on a PhD programme with HPSG, it is a good idea to attend from Week 4 onwards. Seminars will usually be held on Wednesdays, 11:00 12:00.

5 Contact Info For C-related queries: John Pennycook For performance modelling queries: Oli Perks Availability: Always on . High Performance Systems Group (CS 2.04). Resources:

6 Books Worth consulting (in the library): The C Programming Language, (2 nd Edition), Kernighan & Ritchie, 1988 C How to Program, (5 th Edition), Deitel, 2006 Online reference book linked at:

7 Overview of C Much of the Java language builds on C/C++. Some of the language keywords and behaviour is very similar. Beware Though keywords and names of types may be similar, they are often different. Mixing between languages can introduce lots of bugs unless you re sure what you re doing.

8

9 Data Types in C There are only four basic data types in C: 1. char a single byte (8-bits) capable of holding an ASCII character. 2. int an integer value, the size of which is based on the word size of the machine (often 32-bits). 3. float a single precision floating point number (often 32-bit, IEEE). 4. double a double precision floating point number (often 64-bit, IEEE). Note: These sizes are the most commonly encountered, but may be different on some platforms (non-intel/amd).

10 Integers in C (1/2) Two additional qualifiers to control the size of integer values: 1. short int a shorter version of int. 2. long int a longer version of int. Rules: short int <= int <= long int short int >= 16 bits. int >= 16 bits. long int >= 32 bits.

11 Integers in C (2/2) Two (more) additional qualifiers for integer types: 1. unsigned interpret the value as starting from signed allow negative numbers. Use unsigned to increase the range of values available, provided you are sure negative values will not be required. Mixing unsigned and signed values can cause bugs, so be careful.

12 Booleans in C There is no boolean type in C. Booleans are implemented and evaluated as integer values: TRUE = 1 FALSE = 0 Keywords may not be pre-defined in every implementation of C. Conversely: 0 = FALSE Non-zero = TRUE

13 Arrays in C (1/2) Arrays in C are just allocated contiguous blocks of memory. For example: int myarray[5]; allocates space for 5 integers in one contiguous block. Arrays are not objects, so you cannot access properties (like length). You must record the maximum length of the array.

14 Arrays in C (2/2) The name of the array variable can be used as a pointer: int* pointer = myarray; myarray is a pointer to the first element in the array. We will come back to this when we start looking at pointers in more detail...

15 Strings in C (1/2) Strings are implemented using an array of characters, but with an additional element at the end of the string. Strings must terminate with the null character, \0. For example: Hello = { H, e, l, l, o, \0 }

16 Strings in C (2/2) Most important functions are implemented in the string library. To use the string library, put: #include <string.h> at the top of your file. All string functions in the C libraries will use the \0 character to detect the end of a string.

17

18 Control Flow in C (1/2) if, while, do... while are identical, except that conditions must produce an integer boolean result. Consider: if (2 % 2) {... }... Will not run, since 2 % 2 = 0.

19 Control Flow in C (2/2) for loops are not quite identical. Depending on the language mode, you may not be able to declare variable inside a for-loop definition: int i; for (i = 0; i < 10; i++) { printf( %d \n, i); }

20 Operators in C Mathematical operators in C are identical to those in Java. +, -, *, / <=, >=, ==,!=, <, >, &&,! % (modulus) &, ++i, i++, --i, i-- (pre/post-increment/decrement)

21

22 Pointers (1/4) Pointers are references to locations in memory. They are one of the biggest causes of bugs in software construction. Worse they are one of the biggest reasons coursework does not produce correct solutions on marking day.

23 Pointers (2/4) To declare a pointer: int myvalue = 42; int* mypointer; mypointer = &myvalue; int* creates a pointer to a location in memory. This is treated as if it were an integer value. &myvalue is the location of myvalue in memory.

24 Pointers (3/4) Remember: *ptr look at the address pointed to by ptr. &v get the address at which v is stored. Be careful every year pointers cause problems. The compiler can detect some common bugs, but not all of them... The only way to fix these is to inspect your code manually.

25 Pointers (4/4) Common mistakes: 1. Uninitialised Pointers The pointer is not initialised before it is used. An un-initialised pointer has a value of 0 by default. This causes a segmentation fault. 2. Out-of-bounds Memory Access A pointer is used to access an array, and pushed outside of the array s bounds. This either corrupts memory or gives a segmentation fault.

26

27 Hello World Typical Hello World program: #include <stdio.h> main (int argc, char *argv[]) { printf( Hello world!\n ); } The #include acts like a Java import statement.

28 Compilation (1/2) To compile a C file to object code: gcc c myfile.c To link object code in an executable: gcc o myprogram myfile.o To run the executable:./myprogram

29 Compilation (2/2) Compilers: Linux/Mac OS X gcc Windows Microsoft Visual C++/Intel C Compiler Code and seminar contents should work with these compilers (but no promises). You may not be able to compile the MPI coursework at home unless you compile and install the MPI runtimes. Your code will be tested running on department machines; it may be best to do your compilation here.

Sources: On the Web: Slides will be available on:

Sources: On the Web: Slides will be available on: C programming Introduction The basics of algorithms Structure of a C code, compilation step Constant, variable type, variable scope Expression and operators: assignment, arithmetic operators, comparison,

More information

The programming language C. sws1 1

The programming language C. sws1 1 The programming language C sws1 1 The programming language C invented by Dennis Ritchie in early 1970s who used it to write the first Hello World program C was used to write UNIX Standardised as K&C (Kernighan

More information

Informatica e Sistemi in Tempo Reale

Informatica e Sistemi in Tempo Reale Informatica e Sistemi in Tempo Reale Introduction to C programming Giuseppe Lipari http://retis.sssup.it/~lipari Scuola Superiore Sant Anna Pisa October 25, 2010 G. Lipari (Scuola Superiore Sant Anna)

More information

An Incomplete C++ Primer. University of Wyoming MA 5310

An Incomplete C++ Primer. University of Wyoming MA 5310 An Incomplete C++ Primer University of Wyoming MA 5310 Professor Craig C. Douglas http://www.mgnet.org/~douglas/classes/na-sc/notes/c++primer.pdf C++ is a legacy programming language, as is other languages

More information

Bachelors of Computer Application Programming Principle & Algorithm (BCA-S102T)

Bachelors of Computer Application Programming Principle & Algorithm (BCA-S102T) Unit- I Introduction to c Language: C is a general-purpose computer programming language developed between 1969 and 1973 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating

More information

Embedded Systems. Review of ANSI C Topics. A Review of ANSI C and Considerations for Embedded C Programming. Basic features of C

Embedded Systems. Review of ANSI C Topics. A Review of ANSI C and Considerations for Embedded C Programming. Basic features of C Embedded Systems A Review of ANSI C and Considerations for Embedded C Programming Dr. Jeff Jackson Lecture 2-1 Review of ANSI C Topics Basic features of C C fundamentals Basic data types Expressions Selection

More information

ASCII Encoding. The char Type. Manipulating Characters. Manipulating Characters

ASCII Encoding. The char Type. Manipulating Characters. Manipulating Characters The char Type ASCII Encoding The C char type stores small integers. It is usually 8 bits. char variables guaranteed to be able to hold integers 0.. +127. char variables mostly used to store characters

More information

Tutorial on C Language Programming

Tutorial on C Language Programming Tutorial on C Language Programming Teodor Rus rus@cs.uiowa.edu The University of Iowa, Department of Computer Science Introduction to System Software p.1/64 Tutorial on C programming C program structure:

More information

C / C++ and Unix Programming. Materials adapted from Dan Hood and Dianna Xu

C / C++ and Unix Programming. Materials adapted from Dan Hood and Dianna Xu C / C++ and Unix Programming Materials adapted from Dan Hood and Dianna Xu 1 C and Unix Programming Today s goals ú History of C ú Basic types ú printf ú Arithmetic operations, types and casting ú Intro

More information

Java Interview Questions and Answers

Java Interview Questions and Answers 1. What is the most important feature of Java? Java is a platform independent language. 2. What do you mean by platform independence? Platform independence means that we can write and compile the java

More information

Basic Java Constructs and Data Types Nuts and Bolts. Looking into Specific Differences and Enhancements in Java compared to C

Basic Java Constructs and Data Types Nuts and Bolts. Looking into Specific Differences and Enhancements in Java compared to C Basic Java Constructs and Data Types Nuts and Bolts Looking into Specific Differences and Enhancements in Java compared to C 1 Contents Hello World Program Statements Explained Java Program Structure in

More information

The C Programming Language course syllabus associate level

The C Programming Language course syllabus associate level TECHNOLOGIES The C Programming Language course syllabus associate level Course description The course fully covers the basics of programming in the C programming language and demonstrates fundamental programming

More information

CS 106 Introduction to Computer Science I

CS 106 Introduction to Computer Science I CS 106 Introduction to Computer Science I 01 / 21 / 2014 Instructor: Michael Eckmann Today s Topics Introduction Homework assignment Review the syllabus Review the policies on academic dishonesty and improper

More information

Keywords are identifiers having predefined meanings in C programming language. The list of keywords used in standard C are : unsigned void

Keywords are identifiers having predefined meanings in C programming language. The list of keywords used in standard C are : unsigned void 1. Explain C tokens Tokens are basic building blocks of a C program. A token is the smallest element of a C program that is meaningful to the compiler. The C compiler recognizes the following kinds of

More information

6.S096 Lecture 1 Introduction to C

6.S096 Lecture 1 Introduction to C 6.S096 Lecture 1 Introduction to C Welcome to the Memory Jungle Andre Kessler Andre Kessler 6.S096 Lecture 1 Introduction to C 1 / 30 Outline 1 Motivation 2 Class Logistics 3 Memory Model 4 Compiling 5

More information

Phys4051: C Lecture 2 & 3. Comment Statements. C Data Types. Functions (Review) Comment Statements Variables & Operators Branching Instructions

Phys4051: C Lecture 2 & 3. Comment Statements. C Data Types. Functions (Review) Comment Statements Variables & Operators Branching Instructions Phys4051: C Lecture 2 & 3 Functions (Review) Comment Statements Variables & Operators Branching Instructions Comment Statements! Method 1: /* */! Method 2: // /* Single Line */ //Single Line /* This comment

More information

Introduction to Java

Introduction to Java Introduction to Java The HelloWorld program Primitive data types Assignment and arithmetic operations User input Conditional statements Looping Arrays CSA0011 Matthew Xuereb 2008 1 Java Overview A high

More information

Lecture 22: C Programming 4 Embedded Systems

Lecture 22: C Programming 4 Embedded Systems Lecture 22: C Programming 4 Embedded Systems Today s Goals Basic C programming process Variables and constants in C Pointers to access addresses Using a High Level Language High-level languages More human

More information

Pemrograman Dasar. Basic Elements Of Java

Pemrograman Dasar. Basic Elements Of Java Pemrograman Dasar Basic Elements Of Java Compiling and Running a Java Application 2 Portable Java Application 3 Java Platform Platform: hardware or software environment in which a program runs. Oracle

More information

Number Representation

Number Representation Number Representation CS10001: Programming & Data Structures Pallab Dasgupta Professor, Dept. of Computer Sc. & Engg., Indian Institute of Technology Kharagpur Topics to be Discussed How are numeric data

More information

First Java Programs. V. Paúl Pauca. CSC 111D Fall, 2015. Department of Computer Science Wake Forest University. Introduction to Computer Science

First Java Programs. V. Paúl Pauca. CSC 111D Fall, 2015. Department of Computer Science Wake Forest University. Introduction to Computer Science First Java Programs V. Paúl Pauca Department of Computer Science Wake Forest University CSC 111D Fall, 2015 Hello World revisited / 8/23/15 The f i r s t o b l i g a t o r y Java program @author Paul Pauca

More information

Computer Programming Tutorial

Computer Programming Tutorial Computer Programming Tutorial COMPUTER PROGRAMMING TUTORIAL by tutorialspoint.com tutorialspoint.com i ABOUT THE TUTORIAL Computer Prgramming Tutorial Computer programming is the act of writing computer

More information

Embedded Programming in C/C++: Lesson-1: Programming Elements and Programming in C

Embedded Programming in C/C++: Lesson-1: Programming Elements and Programming in C Embedded Programming in C/C++: Lesson-1: Programming Elements and Programming in C 1 An essential part of any embedded system design Programming 2 Programming in Assembly or HLL Processor and memory-sensitive

More information

An Introduction to Assembly Programming with the ARM 32-bit Processor Family

An Introduction to Assembly Programming with the ARM 32-bit Processor Family An Introduction to Assembly Programming with the ARM 32-bit Processor Family G. Agosta Politecnico di Milano December 3, 2011 Contents 1 Introduction 1 1.1 Prerequisites............................. 2

More information

RTI Monitoring Library Getting Started Guide

RTI Monitoring Library Getting Started Guide RTI Monitoring Library Getting Started Guide Version 5.1.0 2011-2013 Real-Time Innovations, Inc. All rights reserved. Printed in U.S.A. First printing. December 2013. Trademarks Real-Time Innovations,

More information

Introduction to Data Structures

Introduction to Data Structures Introduction to Data Structures Albert Gural October 28, 2011 1 Introduction When trying to convert from an algorithm to the actual code, one important aspect to consider is how to store and manipulate

More information

Object Oriented Software Design II

Object Oriented Software Design II Object Oriented Software Design II Introduction to C++ Giuseppe Lipari http://retis.sssup.it/~lipari Scuola Superiore Sant Anna Pisa February 20, 2012 G. Lipari (Scuola Superiore Sant Anna) C++ Intro February

More information

Fundamentals of Programming

Fundamentals of Programming Fundamentals of Programming Introduction to the C language Giuseppe Lipari http://retis.sssup.it/~lipari Scuola Superiore Sant Anna Pisa February 29, 2012 G. Lipari (Scuola Superiore Sant Anna) The C language

More information

Static Code Analysis Procedures in the Development Cycle

Static Code Analysis Procedures in the Development Cycle Static Code Analysis Procedures in the Development Cycle Tools, Technology, and Process in Engineering at Microsoft Mooly Beeri Microsoft Haifa R&D Center Agenda Static code analysis tools PREfix and PREfast

More information

ASSEMBLY PROGRAMMING ON A VIRTUAL COMPUTER

ASSEMBLY PROGRAMMING ON A VIRTUAL COMPUTER ASSEMBLY PROGRAMMING ON A VIRTUAL COMPUTER Pierre A. von Kaenel Mathematics and Computer Science Department Skidmore College Saratoga Springs, NY 12866 (518) 580-5292 pvonk@skidmore.edu ABSTRACT This paper

More information

Lexical Analysis and Scanning. Honors Compilers Feb 5 th 2001 Robert Dewar

Lexical Analysis and Scanning. Honors Compilers Feb 5 th 2001 Robert Dewar Lexical Analysis and Scanning Honors Compilers Feb 5 th 2001 Robert Dewar The Input Read string input Might be sequence of characters (Unix) Might be sequence of lines (VMS) Character set ASCII ISO Latin-1

More information

Keil C51 Cross Compiler

Keil C51 Cross Compiler Keil C51 Cross Compiler ANSI C Compiler Generates fast compact code for the 8051 and it s derivatives Advantages of C over Assembler Do not need to know the microcontroller instruction set Register allocation

More information

How To Write Portable Programs In C

How To Write Portable Programs In C Writing Portable Programs COS 217 1 Goals of Today s Class Writing portable programs in C Sources of heterogeneity Data types, evaluation order, byte order, char set, Reading period and final exam Important

More information

Handout 1. Introduction to Java programming language. Java primitive types and operations. Reading keyboard Input using class Scanner.

Handout 1. Introduction to Java programming language. Java primitive types and operations. Reading keyboard Input using class Scanner. Handout 1 CS603 Object-Oriented Programming Fall 15 Page 1 of 11 Handout 1 Introduction to Java programming language. Java primitive types and operations. Reading keyboard Input using class Scanner. Java

More information

Overview. Lecture 1: an introduction to CUDA. Hardware view. Hardware view. hardware view software view CUDA programming

Overview. Lecture 1: an introduction to CUDA. Hardware view. Hardware view. hardware view software view CUDA programming Overview Lecture 1: an introduction to CUDA Mike Giles mike.giles@maths.ox.ac.uk hardware view software view Oxford University Mathematical Institute Oxford e-research Centre Lecture 1 p. 1 Lecture 1 p.

More information

Object-Oriented Design Lecture 4 CSU 370 Fall 2007 (Pucella) Tuesday, Sep 18, 2007

Object-Oriented Design Lecture 4 CSU 370 Fall 2007 (Pucella) Tuesday, Sep 18, 2007 Object-Oriented Design Lecture 4 CSU 370 Fall 2007 (Pucella) Tuesday, Sep 18, 2007 The Java Type System By now, you have seen a fair amount of Java. Time to study in more depth the foundations of the language,

More information

Module 816. File Management in C. M. Campbell 1993 Deakin University

Module 816. File Management in C. M. Campbell 1993 Deakin University M. Campbell 1993 Deakin University Aim Learning objectives Content After working through this module you should be able to create C programs that create an use both text and binary files. After working

More information

The Answer to the 14 Most Frequently Asked Modbus Questions

The Answer to the 14 Most Frequently Asked Modbus Questions Modbus Frequently Asked Questions WP-34-REV0-0609-1/7 The Answer to the 14 Most Frequently Asked Modbus Questions Exactly what is Modbus? Modbus is an open serial communications protocol widely used in

More information

About The Tutorial. Audience. Prerequisites. Copyright & Disclaimer

About The Tutorial. Audience. Prerequisites. Copyright & Disclaimer About The Tutorial C is a general-purpose, procedural, imperative computer programming language developed in 1972 by Dennis M. Ritchie at the Bell Telephone Laboratories to develop the UNIX operating system.

More information

5 Arrays and Pointers

5 Arrays and Pointers 5 Arrays and Pointers 5.1 One-dimensional arrays Arrays offer a convenient way to store and access blocks of data. Think of arrays as a sequential list that offers indexed access. For example, a list of

More information

Crash Course in Java

Crash Course in Java Crash Course in Java Based on notes from D. Hollinger Based in part on notes from J.J. Johns also: Java in a Nutshell Java Network Programming and Distributed Computing Netprog 2002 Java Intro 1 What is

More information

Habanero Extreme Scale Software Research Project

Habanero Extreme Scale Software Research Project Habanero Extreme Scale Software Research Project Comp215: Java Method Dispatch Zoran Budimlić (Rice University) Always remember that you are absolutely unique. Just like everyone else. - Margaret Mead

More information

CSC230 Getting Starting in C. Tyler Bletsch

CSC230 Getting Starting in C. Tyler Bletsch CSC230 Getting Starting in C Tyler Bletsch What is C? The language of UNIX Procedural language (no classes) Low-level access to memory Easy to map to machine language Not much run-time stuff needed Surprisingly

More information

Data Storage: Each time you create a variable in memory, a certain amount of memory is allocated for that variable based on its data type (or class).

Data Storage: Each time you create a variable in memory, a certain amount of memory is allocated for that variable based on its data type (or class). Data Storage: Computers are made of many small parts, including transistors, capacitors, resistors, magnetic materials, etc. Somehow they have to store information in these materials both temporarily (RAM,

More information

Answers to Review Questions Chapter 7

Answers to Review Questions Chapter 7 Answers to Review Questions Chapter 7 1. The size declarator is used in a definition of an array to indicate the number of elements the array will have. A subscript is used to access a specific element

More information

Problem 1. CS 61b Summer 2005 Homework #2 Due July 5th at the beginning of class

Problem 1. CS 61b Summer 2005 Homework #2 Due July 5th at the beginning of class CS 61b Summer 2005 Homework #2 Due July 5th at the beginning of class This homework is to be done individually. You may, of course, ask your fellow classmates for help if you have trouble editing files,

More information

Storing Measurement Data

Storing Measurement Data Storing Measurement Data File I/O records or reads data in a file. A typical file I/O operation involves the following process. 1. Create or open a file. Indicate where an existing file resides or where

More information

Name: Class: Date: 9. The compiler ignores all comments they are there strictly for the convenience of anyone reading the program.

Name: Class: Date: 9. The compiler ignores all comments they are there strictly for the convenience of anyone reading the program. Name: Class: Date: Exam #1 - Prep True/False Indicate whether the statement is true or false. 1. Programming is the process of writing a computer program in a language that the computer can respond to

More information

Chapter 1 Java Program Design and Development

Chapter 1 Java Program Design and Development presentation slides for JAVA, JAVA, JAVA Object-Oriented Problem Solving Third Edition Ralph Morelli Ralph Walde Trinity College Hartford, CT published by Prentice Hall Java, Java, Java Object Oriented

More information

Java Types and Enums. Nathaniel Osgood MIT 15.879. April 25, 2012

Java Types and Enums. Nathaniel Osgood MIT 15.879. April 25, 2012 Java Types and Enums Nathaniel Osgood MIT 15.879 April 25, 2012 Types in Java Types tell you the class of values from which a variable is drawn In Java we specify types for Parameters Variables Return

More information

CS 141: Introduction to (Java) Programming: Exam 1 Jenny Orr Willamette University Fall 2013

CS 141: Introduction to (Java) Programming: Exam 1 Jenny Orr Willamette University Fall 2013 Oct 4, 2013, p 1 Name: CS 141: Introduction to (Java) Programming: Exam 1 Jenny Orr Willamette University Fall 2013 1. (max 18) 4. (max 16) 2. (max 12) 5. (max 12) 3. (max 24) 6. (max 18) Total: (max 100)

More information

Lecture 5: Java Fundamentals III

Lecture 5: Java Fundamentals III Lecture 5: Java Fundamentals III School of Science and Technology The University of New England Trimester 2 2015 Lecture 5: Java Fundamentals III - Operators Reading: Finish reading Chapter 2 of the 2nd

More information

1 Abstract Data Types Information Hiding

1 Abstract Data Types Information Hiding 1 1 Abstract Data Types Information Hiding 1.1 Data Types Data types are an integral part of every programming language. ANSI-C has int, double and char to name just a few. Programmers are rarely content

More information

Java Basics: Data Types, Variables, and Loops

Java Basics: Data Types, Variables, and Loops Java Basics: Data Types, Variables, and Loops If debugging is the process of removing software bugs, then programming must be the process of putting them in. - Edsger Dijkstra Plan for the Day Variables

More information

Basics of I/O Streams and File I/O

Basics of I/O Streams and File I/O Basics of This is like a cheat sheet for file I/O in C++. It summarizes the steps you must take to do basic I/O to and from files, with only a tiny bit of explanation. It is not a replacement for reading

More information

Instruction Set Architecture (ISA)

Instruction Set Architecture (ISA) Instruction Set Architecture (ISA) * Instruction set architecture of a machine fills the semantic gap between the user and the machine. * ISA serves as the starting point for the design of a new machine

More information

Project 2: Bejeweled

Project 2: Bejeweled Project 2: Bejeweled Project Objective: Post: Tuesday March 26, 2013. Due: 11:59PM, Monday April 15, 2013 1. master the process of completing a programming project in UNIX. 2. get familiar with command

More information

MS ACCESS DATABASE DATA TYPES

MS ACCESS DATABASE DATA TYPES MS ACCESS DATABASE DATA TYPES Data Type Use For Size Text Memo Number Text or combinations of text and numbers, such as addresses. Also numbers that do not require calculations, such as phone numbers,

More information

DNA Data and Program Representation. Alexandre David 1.2.05 adavid@cs.aau.dk

DNA Data and Program Representation. Alexandre David 1.2.05 adavid@cs.aau.dk DNA Data and Program Representation Alexandre David 1.2.05 adavid@cs.aau.dk Introduction Very important to understand how data is represented. operations limits precision Digital logic built on 2-valued

More information

Memory management. Announcements. Safe user input. Function pointers. Uses of function pointers. Function pointer example

Memory management. Announcements. Safe user input. Function pointers. Uses of function pointers. Function pointer example Announcements Memory management Assignment 2 posted, due Friday Do two of the three problems Assignment 1 graded see grades on CMS Lecture 7 CS 113 Spring 2008 2 Safe user input If you use scanf(), include

More information

J a v a Quiz (Unit 3, Test 0 Practice)

J a v a Quiz (Unit 3, Test 0 Practice) Computer Science S-111a: Intensive Introduction to Computer Science Using Java Handout #11 Your Name Teaching Fellow J a v a Quiz (Unit 3, Test 0 Practice) Multiple-choice questions are worth 2 points

More information

Ada-95 dla programistów C/C++

Ada-95 dla programistów C/C++ Introduction Dariusz Wawrzyniak (na podst. oprac. Simona Johnstona) Part I Ada Basics Outline 1 2 Ada 3 Ada outline 1 2 Ada 3 Ada Ada is case insensitive, so begin BEGIN Begin are all the same. The tick

More information

Chapter 5 Names, Bindings, Type Checking, and Scopes

Chapter 5 Names, Bindings, Type Checking, and Scopes Chapter 5 Names, Bindings, Type Checking, and Scopes Chapter 5 Topics Introduction Names Variables The Concept of Binding Type Checking Strong Typing Scope Scope and Lifetime Referencing Environments Named

More information

1 The Java Virtual Machine

1 The Java Virtual Machine 1 The Java Virtual Machine About the Spec Format This document describes the Java virtual machine and the instruction set. In this introduction, each component of the machine is briefly described. This

More information

Semantic Analysis: Types and Type Checking

Semantic Analysis: Types and Type Checking Semantic Analysis Semantic Analysis: Types and Type Checking CS 471 October 10, 2007 Source code Lexical Analysis tokens Syntactic Analysis AST Semantic Analysis AST Intermediate Code Gen lexical errors

More information

Chapter 7D The Java Virtual Machine

Chapter 7D The Java Virtual Machine This sub chapter discusses another architecture, that of the JVM (Java Virtual Machine). In general, a VM (Virtual Machine) is a hypothetical machine (implemented in either hardware or software) that directly

More information

GDB Tutorial. A Walkthrough with Examples. CMSC 212 - Spring 2009. Last modified March 22, 2009. GDB Tutorial

GDB Tutorial. A Walkthrough with Examples. CMSC 212 - Spring 2009. Last modified March 22, 2009. GDB Tutorial A Walkthrough with Examples CMSC 212 - Spring 2009 Last modified March 22, 2009 What is gdb? GNU Debugger A debugger for several languages, including C and C++ It allows you to inspect what the program

More information

KITES TECHNOLOGY COURSE MODULE (C, C++, DS)

KITES TECHNOLOGY COURSE MODULE (C, C++, DS) KITES TECHNOLOGY 360 Degree Solution www.kitestechnology.com/academy.php info@kitestechnology.com technologykites@gmail.com Contact: - 8961334776 9433759247 9830639522.NET JAVA WEB DESIGN PHP SQL, PL/SQL

More information

Schema Classes. Polyhedra Ltd

Schema Classes. Polyhedra Ltd Schema Classes Polyhedra Ltd Copyright notice This document is copyright 1994-2006 by Polyhedra Ltd. All Rights Reserved. This document contains information proprietary to Polyhedra Ltd. It is supplied

More information

COS 217: Introduction to Programming Systems

COS 217: Introduction to Programming Systems COS 217: Introduction to Programming Systems 1 Goals for Todayʼs Class Course overview Introductions Course goals Resources Grading Policies Getting started with C C programming language overview 2 1 Introductions

More information

This section describes how LabVIEW stores data in memory for controls, indicators, wires, and other objects.

This section describes how LabVIEW stores data in memory for controls, indicators, wires, and other objects. Application Note 154 LabVIEW Data Storage Introduction This Application Note describes the formats in which you can save data. This information is most useful to advanced users, such as those using shared

More information

How Compilers Work. by Walter Bright. Digital Mars

How Compilers Work. by Walter Bright. Digital Mars How Compilers Work by Walter Bright Digital Mars Compilers I've Built D programming language C++ C Javascript Java A.B.E.L Compiler Compilers Regex Lex Yacc Spirit Do only the easiest part Not very customizable

More information

6.087 Lecture 2 January 12, 2010

6.087 Lecture 2 January 12, 2010 6.087 Lecture 2 January 12, 2010 Review Variables and data types Operators Epilogue 1 Review: C Programming language C is a fast, small,general-purpose,platform independent programming language. C is used

More information

64-Bit NASM Notes. Invoking 64-Bit NASM

64-Bit NASM Notes. Invoking 64-Bit NASM 64-Bit NASM Notes The transition from 32- to 64-bit architectures is no joke, as anyone who has wrestled with 32/64 bit incompatibilities will attest We note here some key differences between 32- and 64-bit

More information

Stacks. Linear data structures

Stacks. Linear data structures Stacks Linear data structures Collection of components that can be arranged as a straight line Data structure grows or shrinks as we add or remove objects ADTs provide an abstract layer for various operations

More information

How To Port A Program To Dynamic C (C) (C-Based) (Program) (For A Non Portable Program) (Un Portable) (Permanent) (Non Portable) C-Based (Programs) (Powerpoint)

How To Port A Program To Dynamic C (C) (C-Based) (Program) (For A Non Portable Program) (Un Portable) (Permanent) (Non Portable) C-Based (Programs) (Powerpoint) TN203 Porting a Program to Dynamic C Introduction Dynamic C has a number of improvements and differences compared to many other C compiler systems. This application note gives instructions and suggestions

More information

The Java Virtual Machine and Mobile Devices. John Buford, Ph.D. buford@alum.mit.edu Oct 2003 Presented to Gordon College CS 311

The Java Virtual Machine and Mobile Devices. John Buford, Ph.D. buford@alum.mit.edu Oct 2003 Presented to Gordon College CS 311 The Java Virtual Machine and Mobile Devices John Buford, Ph.D. buford@alum.mit.edu Oct 2003 Presented to Gordon College CS 311 Objectives Review virtual machine concept Introduce stack machine architecture

More information

Session 2: MUST. Correctness Checking

Session 2: MUST. Correctness Checking Center for Information Services and High Performance Computing (ZIH) Session 2: MUST Correctness Checking Dr. Matthias S. Müller (RWTH Aachen University) Tobias Hilbrich (Technische Universität Dresden)

More information

Debugging with TotalView

Debugging with TotalView Tim Cramer 17.03.2015 IT Center der RWTH Aachen University Why to use a Debugger? If your program goes haywire, you may... ( wand (... buy a magic... read the source code again and again and...... enrich

More information

Format string exploitation on windows Using Immunity Debugger / Python. By Abysssec Inc WwW.Abysssec.Com

Format string exploitation on windows Using Immunity Debugger / Python. By Abysssec Inc WwW.Abysssec.Com Format string exploitation on windows Using Immunity Debugger / Python By Abysssec Inc WwW.Abysssec.Com For real beneficiary this post you should have few assembly knowledge and you should know about classic

More information

VB.NET Programming Fundamentals

VB.NET Programming Fundamentals Chapter 3 Objectives Programming Fundamentals In this chapter, you will: Learn about the programming language Write a module definition Use variables and data types Compute with Write decision-making statements

More information

As previously noted, a byte can contain a numeric value in the range 0-255. Computers don't understand Latin, Cyrillic, Hindi, Arabic character sets!

As previously noted, a byte can contain a numeric value in the range 0-255. Computers don't understand Latin, Cyrillic, Hindi, Arabic character sets! Encoding of alphanumeric and special characters As previously noted, a byte can contain a numeric value in the range 0-255. Computers don't understand Latin, Cyrillic, Hindi, Arabic character sets! Alphanumeric

More information

3F6 - Software Engineering and Design. Handout 10 Distributed Systems I With Markup. Steve Young

3F6 - Software Engineering and Design. Handout 10 Distributed Systems I With Markup. Steve Young 3F6 - Software Engineering and Design Handout 10 Distributed Systems I With Markup Steve Young Contents 1. Distributed systems 2. Client-server architecture 3. CORBA 4. Interface Definition Language (IDL)

More information

An Overview of Java. overview-1

An Overview of Java. overview-1 An Overview of Java overview-1 Contents What is Java Major Java features Java virtual machine Java programming language Java class libraries (API) GUI Support in Java Networking and Threads in Java overview-2

More information

Introduction to Java. CS 3: Computer Programming in Java

Introduction to Java. CS 3: Computer Programming in Java Introduction to Java CS 3: Computer Programming in Java Objectives Begin with primitive data types Create a main class with helper methods Learn how to call built-in class methods and instance methods

More information

Member Functions of the istream Class

Member Functions of the istream Class Member Functions of the istream Class The extraction operator is of limited use because it always uses whitespace to delimit its reads of the input stream. It cannot be used to read those whitespace characters,

More information

7th Marathon of Parallel Programming WSCAD-SSC/SBAC-PAD-2012

7th Marathon of Parallel Programming WSCAD-SSC/SBAC-PAD-2012 7th Marathon of Parallel Programming WSCAD-SSC/SBAC-PAD-2012 October 17 th, 2012. Rules For all problems, read carefully the input and output session. For all problems, a sequential implementation is given,

More information

Introduction to Python

Introduction to Python Introduction to Python Sophia Bethany Coban Problem Solving By Computer March 26, 2014 Introduction to Python Python is a general-purpose, high-level programming language. It offers readable codes, and

More information

Parallelization: Binary Tree Traversal

Parallelization: Binary Tree Traversal By Aaron Weeden and Patrick Royal Shodor Education Foundation, Inc. August 2012 Introduction: According to Moore s law, the number of transistors on a computer chip doubles roughly every two years. First

More information

Arrays. Atul Prakash Readings: Chapter 10, Downey Sun s Java tutorial on Arrays: http://java.sun.com/docs/books/tutorial/java/nutsandbolts/arrays.

Arrays. Atul Prakash Readings: Chapter 10, Downey Sun s Java tutorial on Arrays: http://java.sun.com/docs/books/tutorial/java/nutsandbolts/arrays. Arrays Atul Prakash Readings: Chapter 10, Downey Sun s Java tutorial on Arrays: http://java.sun.com/docs/books/tutorial/java/nutsandbolts/arrays.html 1 Grid in Assignment 2 How do you represent the state

More information

C Programming. for Embedded Microcontrollers. Warwick A. Smith. Postbus 11. Elektor International Media BV. 6114ZG Susteren The Netherlands

C Programming. for Embedded Microcontrollers. Warwick A. Smith. Postbus 11. Elektor International Media BV. 6114ZG Susteren The Netherlands C Programming for Embedded Microcontrollers Warwick A. Smith Elektor International Media BV Postbus 11 6114ZG Susteren The Netherlands 3 the Table of Contents Introduction 11 Target Audience 11 What is

More information

Programing the Microprocessor in C Microprocessor System Design and Interfacing ECE 362

Programing the Microprocessor in C Microprocessor System Design and Interfacing ECE 362 PURDUE UNIVERSITY Programing the Microprocessor in C Microprocessor System Design and Interfacing ECE 362 Course Staff 1/31/2012 1 Introduction This tutorial is made to help the student use C language

More information

Caml Virtual Machine File & data formats Document version: 1.4 http://cadmium.x9c.fr

Caml Virtual Machine File & data formats Document version: 1.4 http://cadmium.x9c.fr Caml Virtual Machine File & data formats Document version: 1.4 http://cadmium.x9c.fr Copyright c 2007-2010 Xavier Clerc cadmium@x9c.fr Released under the LGPL version 3 February 6, 2010 Abstract: This

More information

So far we have considered only numeric processing, i.e. processing of numeric data represented

So far we have considered only numeric processing, i.e. processing of numeric data represented Chapter 4 Processing Character Data So far we have considered only numeric processing, i.e. processing of numeric data represented as integer and oating point types. Humans also use computers to manipulate

More information

Lecture 11 Doubly Linked Lists & Array of Linked Lists. Doubly Linked Lists

Lecture 11 Doubly Linked Lists & Array of Linked Lists. Doubly Linked Lists Lecture 11 Doubly Linked Lists & Array of Linked Lists In this lecture Doubly linked lists Array of Linked Lists Creating an Array of Linked Lists Representing a Sparse Matrix Defining a Node for a Sparse

More information

Compiling Object Oriented Languages. What is an Object-Oriented Programming Language? Implementation: Dynamic Binding

Compiling Object Oriented Languages. What is an Object-Oriented Programming Language? Implementation: Dynamic Binding Compiling Object Oriented Languages What is an Object-Oriented Programming Language? Last time Dynamic compilation Today Introduction to compiling object oriented languages What are the issues? Objects

More information

Guide to Upsizing from Access to SQL Server

Guide to Upsizing from Access to SQL Server Guide to Upsizing from Access to SQL Server An introduction to the issues involved in upsizing an application from Microsoft Access to SQL Server January 2003 Aztec Computing 1 Why Should I Consider Upsizing

More information

CS1020 Data Structures and Algorithms I Lecture Note #1. Introduction to Java

CS1020 Data Structures and Algorithms I Lecture Note #1. Introduction to Java CS1020 Data Structures and Algorithms I Lecture Note #1 Introduction to Java Objectives Java Basic Java features C Java Translate C programs in CS1010 into Java programs 2 References Chapter 1 Section

More information

qwertyuiopasdfghjklzxcvbnmqwerty uiopasdfghjklzxcvbnmqwertyuiopasd fghjklzxcvbnmqwertyuiopasdfghjklzx cvbnmqwertyuiopasdfghjklzxcvbnmq

qwertyuiopasdfghjklzxcvbnmqwerty uiopasdfghjklzxcvbnmqwertyuiopasd fghjklzxcvbnmqwertyuiopasdfghjklzx cvbnmqwertyuiopasdfghjklzxcvbnmq qwertyuiopasdfghjklzxcvbnmqwerty uiopasdfghjklzxcvbnmqwertyuiopasd fghjklzxcvbnmqwertyuiopasdfghjklzx cvbnmqwertyuiopasdfghjklzxcvbnmq Introduction to Programming using Java wertyuiopasdfghjklzxcvbnmqwertyui

More information

Software security. Buffer overflow attacks SQL injections. Lecture 11 EIT060 Computer Security

Software security. Buffer overflow attacks SQL injections. Lecture 11 EIT060 Computer Security Software security Buffer overflow attacks SQL injections Lecture 11 EIT060 Computer Security Buffer overflow attacks Buffer overrun is another common term Definition A condition at an interface under which

More information