Expressions and Precedence. Last updated 12/10/18

Size: px
Start display at page:

Download "Expressions and Precedence. Last updated 12/10/18"

Transcription

1 Expressions and Precedence Last updated 12/10/18

2 Expression: Sequence of Operators and Operands that reduce to a single value Simple and Complex Expressions Subject to Precedence and Associativity Six categories Primary Postfix Prefix Unary Binary Ternary 2 tj

3 Simple Expressions Only 1 operator a + b Complex Expressions Multiple operators 2*3/6 3 tj

4 Primary Expressions One operand and no operators Name a interest_rate RATE initial1 Literal a hello ee1910 Parenthetical Anything in parentheses reduces to a single value (2 + 3 * 4) (a = b + c) 4 tj

5 Postfix Expressions One operand followed by one operator Operand must be a variable Function Call Function name is an operand (named entity) Parenthesis are the operator printf( ) Postfix increment/decrement i++ i = i + 1 j-- j = j tj

6 Postfix Expressions Some expressions have a Value and a Side Effect int j; int x; j = 5; x = j++; Value: x = 5 Side Effect: j = 6 Consider printf( %d, j++); 5 or 6? Postfix indicates to operate after the evaluation 6 tj

7 Prefix Expressions One operator followed by one operand Operand must be a variable Only 2 examples Prefix increment/decrement ++j j = j k k= k tj

8 Prefix Expressions Some expressions have a Value and a Side Effect int j; int x; j = 5; x = ++j; Value: x = 6 Side Effect: j = 6 Consider printf( %d, ++j); 5 or 6? Prefix indicates to operate before the evaluation 8 tj

9 Unary Expressions One operator followed by one operand Operand can be any expression sizeof(int) sizeof(x) a = 5 +a -> +5 Note: the expression is modified -a -> -5 not the variable, a = 5 in both cases char x; (int) x the value is cast as an int x is not cast as an int 9 tj

10 Binary Expressions Operand operator operand Familiar to us: +, -, *, / New: % - modulus (remainder of a division) Subject to type limitations 10 * / 2 5 true * 2 2 true / 2 0??? A * A / 2 32??? 15.6 * / / / % % 5 2 Modulo only operates in integers 10 tj

11 Binary Expressions Special binary expression - assignment variable = expression Has both a value - result of right side And a side effect places value into the variable on the left side Simple a = b + c j = j * 2 Compound *=, /=, +=, -=, %= a *= b a = a * b a += 10 a = a + 10 a -= b + c a = a (b + c) expression is evaluated first 11 tj

12 Ternary Expressions 12 tj

13 Precedence Order in which operators are evaluated In math: * and / before + and 2/3+3*4 ((2/3) + (3*4)) Associativity Order in which operators with the same precedence are evaluated In math: left to right (((2 + 3) 4) + 5) 13 tj

14 Precedence Operator Description Associativity Suffix/postfix increment and decrement Left-to-right () Function call [] Array subscripting 1. Structure and union member access -> Structure and union member access through pointer Precedence (type){list} Operator Compound literal(c99) Description Associativity Prefix increment and decrement Suffix/postfix increment and decrement Left-to-rightRight-to-left + - Unary plus and minus! ~ () Logical NOT and bitwise Function NOT call (type) [] Type cast 2 Array subscripting * Indirection (dereference) 1 &. Address-of Structure and union member access sizeof Size-of _Alignof -> Alignment requirement(c11) Structure and union member access through pointer 3 * / % Multiplication, division, and remainder Left-to-right (type){list} Compound literal(c99) Addition and subtraction 5 << >> ++ Bitwise -- left shift Prefix and right increment shift and decrement Right-to-left < <= + For - relational operators Unary plus < and and respectively 6 minus > >= For relational operators > and respectively! ~ Logical NOT and bitwise NOT 7 ==!= For relational = and respectively 8 & (type) Type cast 2 Bitwise AND 9 ^ * Bitwise XOR (exclusive Indirection or) (dereference) 10 & Bitwise OR (inclusive Address-of or) 11 && Logical AND sizeof Size-of 12 Logical OR 13?: _Alignof Ternary conditional Alignment requirement(c11) Right-to-Left = Simple assignment += -= Assignment by sum and difference 14 *= /= %= Assignment by product, quotient, and remainder <<= >>= Assignment by bitwise left shift and right shift &= ^= = Assignment by bitwise AND, XOR, and OR 15, Comma Left-to-right 14 tj

15 Examples (ints) a = 2, b=3, c= * * 3 / 2 -b++ a += b *= c -= 3 --a * (1 + b) / 3 c++ * b 15 tj

16 Examples a = 2, b=3, c= * (2 * 3) = * 3 / ((2 *3) /2) = 1 + (6/2) = 4 same precedence Answers (L-R) -b++ -(b++) = -3 evaluates first (b is now 4) a += b *= c -= 3 c= 1, b=3, a=5 same precedence (R-L) --a * (1 + b) / 3 c++ * b --a * 4 / 3 c++ * b --a * 4 / 3 4 * b 1 * 4 / 3 4 * b Answers 4 / 3 4 * tj

17 Precedence and Associativity For clarity and precision Use Parenthesis freely (((--a) * (1 + b) )/ 3) ((c++) * b) ((( 1 ) * ( 4 )) / 3 ) (( 4 ) * 3 ) (( 4 / 3 ) ( 12 )) Answers ( 1 12 ) tj

18 Bitwise Operators ~ bitwise not inverts the individual bits in a number ~( ) bitwise or ORs the individual bits ( ) ( ) & bitwise and ANDs the individual bits ( ) & ( ) ^ bitwise xor XORs the individual bits ( ) ^ ( ) tj

19 Bitwise Operators >> bitwise shift right shifts the individual bits in a number to the right ( ) >> unsigned OR signed << bitwise shift left shifts the individual bits in a number to the left ( ) << unsigned or signed 19 tj

20 Logical Operators! logical not inverts the logical value!true false!34 false logical OR evaluates both sides logically then does an OR true true true 0 0 false true && logical AND evaluates both sides logically then does an AND true && true true 1 && 0 false 34 && 32 true 20 tj

21 Relational Operators ==, <, >, <=, >=,!= equals, LT, GT, LE, GE, not equal evaluates the parameters by type true == true true 34 == 32 false 34!= 32 true 5 >= 5 true 21 tj

Information Science 1

Information Science 1 Information Science 1 Simple Calcula,ons Week 09 College of Information Science and Engineering Ritsumeikan University Topics covered l Terms and concepts from Week 8 l Simple calculations Documenting

More information

GO - OPERATORS. This tutorial will explain the arithmetic, relational, logical, bitwise, assignment and other operators one by one.

GO - OPERATORS. This tutorial will explain the arithmetic, relational, logical, bitwise, assignment and other operators one by one. http://www.tutorialspoint.com/go/go_operators.htm GO - OPERATORS Copyright tutorialspoint.com An operator is a symbol that tells the compiler to perform specific mathematical or logical manipulations.

More information

A complex expression to evaluate we need to reduce it to a series of simple expressions. E.g * 7 =>2+ 35 => 37. E.g.

A complex expression to evaluate we need to reduce it to a series of simple expressions. E.g * 7 =>2+ 35 => 37. E.g. 1.3a Expressions Expressions An Expression is a sequence of operands and operators that reduces to a single value. An operator is a syntactical token that requires an action be taken An operand is an object

More information

A flow chart is a graphical or symbolic representation of a process.

A flow chart is a graphical or symbolic representation of a process. Q1. Define Algorithm with example? Answer:- A sequential solution of any program that written in human language, called algorithm. Algorithm is first step of the solution process, after the analysis of

More information

Operators. Java operators are classified into three categories:

Operators. Java operators are classified into three categories: Operators Operators are symbols that perform arithmetic and logical operations on operands and provide a meaningful result. Operands are data values (variables or constants) which are involved in operations.

More information

CprE 288 Introduction to Embedded Systems Exam 1 Review. 1

CprE 288 Introduction to Embedded Systems Exam 1 Review.  1 CprE 288 Introduction to Embedded Systems Exam 1 Review http://class.ece.iastate.edu/cpre288 1 Overview of Today s Lecture Announcements Exam 1 Review http://class.ece.iastate.edu/cpre288 2 Announcements

More information

Basic operators, Arithmetic, Relational, Bitwise, Logical, Assignment, Conditional operators. JAVA Standard Edition

Basic operators, Arithmetic, Relational, Bitwise, Logical, Assignment, Conditional operators. JAVA Standard Edition Basic operators, Arithmetic, Relational, Bitwise, Logical, Assignment, Conditional operators JAVA Standard Edition Java - Basic Operators Java provides a rich set of operators to manipulate variables.

More information

Informatics Ingeniería en Electrónica y Automática Industrial

Informatics Ingeniería en Electrónica y Automática Industrial Informatics Ingeniería en Electrónica y Automática Industrial Operators and expressions in C Operators and expressions in C Numerical expressions and operators Arithmetical operators Relational and logical

More information

Operators & Expressions

Operators & Expressions Operators & Expressions Operator An operator is a symbol used to indicate a specific operation on variables in a program. Example : symbol + is an add operator that adds two data items called operands.

More information

Operators in C. Staff Incharge: S.Sasirekha

Operators in C. Staff Incharge: S.Sasirekha Operators in C Staff Incharge: S.Sasirekha Operators An operator is a symbol which helps the user to command the computer to do a certain mathematical or logical manipulations. Operators are used in C

More information

Computers Programming Course 6. Iulian Năstac

Computers Programming Course 6. Iulian Năstac Computers Programming Course 6 Iulian Năstac Recap from previous course Data types four basic arithmetic type specifiers: char int float double void optional specifiers: signed, unsigned short long 2 Recap

More information

Character Set. The character set of C represents alphabet, digit or any symbol used to represent information. Digits 0, 1, 2, 3, 9

Character Set. The character set of C represents alphabet, digit or any symbol used to represent information. Digits 0, 1, 2, 3, 9 Character Set The character set of C represents alphabet, digit or any symbol used to represent information. Types Uppercase Alphabets Lowercase Alphabets Character Set A, B, C, Y, Z a, b, c, y, z Digits

More information

JAVA OPERATORS GENERAL

JAVA OPERATORS GENERAL JAVA OPERATORS GENERAL Java provides a rich set of operators to manipulate variables. We can divide all the Java operators into the following groups: Arithmetic Operators Relational Operators Bitwise Operators

More information

Unit-2 (Operators) ANAND KR.SRIVASTAVA

Unit-2 (Operators) ANAND KR.SRIVASTAVA Unit-2 (Operators) ANAND KR.SRIVASTAVA 1 Operators in C ( use of operators in C ) Operators are the symbol, to perform some operation ( calculation, manipulation). Set of Operations are used in completion

More information

Will introduce various operators supported by C language Identify supported operations Present some of terms characterizing operators

Will introduce various operators supported by C language Identify supported operations Present some of terms characterizing operators Operators Overview Will introduce various operators supported by C language Identify supported operations Present some of terms characterizing operators Operands and Operators Mathematical or logical relationships

More information

Introduction. Following are the types of operators: Unary requires a single operand Binary requires two operands Ternary requires three operands

Introduction. Following are the types of operators: Unary requires a single operand Binary requires two operands Ternary requires three operands Introduction Operators are the symbols which operates on value or a variable. It tells the compiler to perform certain mathematical or logical manipulations. Can be of following categories: Unary requires

More information

UNIT- 3 Introduction to C++

UNIT- 3 Introduction to C++ UNIT- 3 Introduction to C++ C++ Character Sets: Letters A-Z, a-z Digits 0-9 Special Symbols Space + - * / ^ \ ( ) [ ] =!= . $, ; : %! &? _ # = @ White Spaces Blank spaces, horizontal tab, carriage

More information

Chapter 3 Structure of a C Program

Chapter 3 Structure of a C Program Chapter 3 Structure of a C Program Objectives To be able to list and describe the six expression categories To understand the rules of precedence and associativity in evaluating expressions To understand

More information

Outline. Performing Computations. Outline (cont) Expressions in C. Some Expression Formats. Types for Operands

Outline. Performing Computations. Outline (cont) Expressions in C. Some Expression Formats. Types for Operands Performing Computations C provides operators that can be applied to calculate expressions: tax is 8.5% of the total sale expression: tax = 0.085 * totalsale Need to specify what operations are legal, how

More information

ESCI 386 IDL Programming for Advanced Earth Science Applications Lesson 1 IDL Operators

ESCI 386 IDL Programming for Advanced Earth Science Applications Lesson 1 IDL Operators ESCI 386 IDL Programming for Advanced Earth Science Applications Lesson 1 IDL Operators ARITHMATIC OPERATORS The assignment operator in IDL is the equals sign, =. IDL uses all the familiar arithmetic operators

More information

Chapter 3: Operators, Expressions and Type Conversion

Chapter 3: Operators, Expressions and Type Conversion 101 Chapter 3 Operators, Expressions and Type Conversion Chapter 3: Operators, Expressions and Type Conversion Objectives To use basic arithmetic operators. To use increment and decrement operators. To

More information

Expression and Operator

Expression and Operator Expression and Operator Examples: Two types: Expressions and Operators 3 + 5; x; x=0; x=x+1; printf("%d",x); Function calls The expressions formed by data and operators An expression in C usually has a

More information

Department of Computer Science

Department of Computer Science Department of Computer Science Definition An operator is a symbol (+,-,*,/) that directs the computer to perform certain mathematical or logical manipulations and is usually used to manipulate data and

More information

Unit 3. Operators. School of Science and Technology INTRODUCTION

Unit 3. Operators. School of Science and Technology INTRODUCTION INTRODUCTION Operators Unit 3 In the previous units (unit 1 and 2) you have learned about the basics of computer programming, different data types, constants, keywords and basic structure of a C program.

More information

Operators and Expressions in C & C++ Mahesh Jangid Assistant Professor Manipal University, Jaipur

Operators and Expressions in C & C++ Mahesh Jangid Assistant Professor Manipal University, Jaipur Operators and Expressions in C & C++ Mahesh Jangid Assistant Professor Manipal University, Jaipur Operators and Expressions 8/24/2012 Dept of CS&E 2 Arithmetic operators Relational operators Logical operators

More information

3. EXPRESSIONS. It is a sequence of operands and operators that reduce to a single value.

3. EXPRESSIONS. It is a sequence of operands and operators that reduce to a single value. 3. EXPRESSIONS It is a sequence of operands and operators that reduce to a single value. Operator : It is a symbolic token that represents an action to be taken. Ex: * is an multiplication operator. Operand:

More information

Operators and Expressions:

Operators and Expressions: Operators and Expressions: Operators and expression using numeric and relational operators, mixed operands, type conversion, logical operators, bit operations, assignment operator, operator precedence

More information

SECTION II: LANGUAGE BASICS

SECTION II: LANGUAGE BASICS Chapter 5 SECTION II: LANGUAGE BASICS Operators Chapter 04: Basic Fundamentals demonstrated declaring and initializing variables. This chapter depicts how to do something with them, using operators. Operators

More information

Java provides a rich set of operators to manipulate variables. We can divide all the Java operators into the following groups:

Java provides a rich set of operators to manipulate variables. We can divide all the Java operators into the following groups: Basic Operators Java provides a rich set of operators to manipulate variables. We can divide all the Java operators into the following groups: Arithmetic Operators Relational Operators Bitwise Operators

More information

Operators. Lecture 3 COP 3014 Spring January 16, 2018

Operators. Lecture 3 COP 3014 Spring January 16, 2018 Operators Lecture 3 COP 3014 Spring 2018 January 16, 2018 Operators Special built-in symbols that have functionality, and work on operands operand an input to an operator Arity - how many operands an operator

More information

Operators in java Operator operands.

Operators in java Operator operands. Operators in java Operator in java is a symbol that is used to perform operations and the objects of operation are referred as operands. There are many types of operators in java such as unary operator,

More information

Module 2 - Part 2 DATA TYPES AND EXPRESSIONS 1/15/19 CSE 1321 MODULE 2 1

Module 2 - Part 2 DATA TYPES AND EXPRESSIONS 1/15/19 CSE 1321 MODULE 2 1 Module 2 - Part 2 DATA TYPES AND EXPRESSIONS 1/15/19 CSE 1321 MODULE 2 1 Topics 1. Expressions 2. Operator precedence 3. Shorthand operators 4. Data/Type Conversion 1/15/19 CSE 1321 MODULE 2 2 Expressions

More information

LECTURE 3 C++ Basics Part 2

LECTURE 3 C++ Basics Part 2 LECTURE 3 C++ Basics Part 2 OVERVIEW Operators Type Conversions OPERATORS Operators are special built-in symbols that have functionality, and work on operands. Operators are actually functions that use

More information

LESSON 1. A C program is constructed as a sequence of characters. Among the characters that can be used in a program are:

LESSON 1. A C program is constructed as a sequence of characters. Among the characters that can be used in a program are: LESSON 1 FUNDAMENTALS OF C The purpose of this lesson is to explain the fundamental elements of the C programming language. C like other languages has all alphabet and rules for putting together words

More information

QUIZ: What value is stored in a after this

QUIZ: What value is stored in a after this QUIZ: What value is stored in a after this statement is executed? Why? a = 23/7; QUIZ evaluates to 16. Lesson 4 Statements, Expressions, Operators Statement = complete instruction that directs the computer

More information

Data Types and Variables in C language

Data Types and Variables in C language Data Types and Variables in C language Disclaimer The slides are prepared from various sources. The purpose of the slides is for academic use only Operators in C C supports a rich set of operators. Operators

More information

Lecture 02 Summary. C/Java Syntax 1/14/2009. Keywords Variable Declarations Data Types Operators Statements. Functions

Lecture 02 Summary. C/Java Syntax 1/14/2009. Keywords Variable Declarations Data Types Operators Statements. Functions Lecture 02 Summary C/Java Syntax Keywords Variable Declarations Data Types Operators Statements if, switch, while, do-while, for Functions 1 2 By the end of this lecture, you will be able to identify the

More information

C/Java Syntax. January 13, Slides by Mark Hancock (adapted from notes by Craig Schock)

C/Java Syntax. January 13, Slides by Mark Hancock (adapted from notes by Craig Schock) C/Java Syntax 1 Lecture 02 Summary Keywords Variable Declarations Data Types Operators Statements if, switch, while, do-while, for Functions 2 By the end of this lecture, you will be able to identify the

More information

C/Java Syntax. Lecture 02 Summary. Keywords Variable Declarations Data Types Operators Statements. Functions. if, switch, while, do-while, for

C/Java Syntax. Lecture 02 Summary. Keywords Variable Declarations Data Types Operators Statements. Functions. if, switch, while, do-while, for C/Java Syntax 1 Lecture 02 Summary Keywords Variable Declarations Data Types Operators Statements if, switch, while, do-while, for Functions 2 1 By the end of this lecture, you will be able to identify

More information

I2204 ImperativeProgramming Semester: 1 Academic Year: 2018/2019 Credits: 5 Dr Antoun Yaacoub

I2204 ImperativeProgramming Semester: 1 Academic Year: 2018/2019 Credits: 5 Dr Antoun Yaacoub Lebanese University Faculty of Science Computer Science BS Degree I2204 ImperativeProgramming Semester: 1 Academic Year: 2018/2019 Credits: 5 Dr Antoun Yaacoub 2Computer Science BS Degree -Imperative Programming

More information

ISA 563 : Fundamentals of Systems Programming

ISA 563 : Fundamentals of Systems Programming ISA 563 : Fundamentals of Systems Programming Variables, Primitive Types, Operators, and Expressions September 4 th 2008 Outline Define Expressions Discuss how to represent data in a program variable name

More information

UNIT 3 OPERATORS. [Marks- 12]

UNIT 3 OPERATORS. [Marks- 12] 1 UNIT 3 OPERATORS [Marks- 12] SYLLABUS 2 INTRODUCTION C supports a rich set of operators such as +, -, *,,

More information

Programming in C++ 5. Integral data types

Programming in C++ 5. Integral data types Programming in C++ 5. Integral data types! Introduction! Type int! Integer multiplication & division! Increment & decrement operators! Associativity & precedence of operators! Some common operators! Long

More information

Lesson #3. Variables, Operators, and Expressions. 3. Variables, Operators and Expressions - Copyright Denis Hamelin - Ryerson University

Lesson #3. Variables, Operators, and Expressions. 3. Variables, Operators and Expressions - Copyright Denis Hamelin - Ryerson University Lesson #3 Variables, Operators, and Expressions Variables We already know the three main types of variables in C: int, char, and double. There is also the float type which is similar to double with only

More information

Program Flow. Instructions and Memory. Why are these 16 bits? C code. Memory. a = b + c. Machine Code. Memory. Assembly Code.

Program Flow. Instructions and Memory. Why are these 16 bits? C code. Memory. a = b + c. Machine Code. Memory. Assembly Code. Instructions and Memory C code Why are these 16 bits? a = b + c Assembly Code ldr r0, [sp, #4] ldr adds r1, [sp] r0, r0, r1 str r0, [sp, #8] Machine Code 09801 09900 01840 09002 Memory 0 0 0 0 0 0 0 1

More information

Operators and Type Conversion. By Avani M. Sakhapara Assistant Professor, IT Dept, KJSCE

Operators and Type Conversion. By Avani M. Sakhapara Assistant Professor, IT Dept, KJSCE Operators and Type Conversion By Avani M. Sakhapara Assistant Professor, IT Dept, KJSCE Introduction An operator is a symbol which represents a particular operation that can be performed on some data.

More information

Infix to Postfix Conversion

Infix to Postfix Conversion Infix to Postfix Conversion Infix to Postfix Conversion Stacks are widely used in the design and implementation of compilers. For example, they are used to convert arithmetic expressions from infix notation

More information

Part I Part 1 Expressions

Part I Part 1 Expressions Writing Program in C Expressions and Control Structures (Selection Statements and Loops) Jan Faigl Department of Computer Science Faculty of Electrical Engineering Czech Technical University in Prague

More information

Writing Program in C Expressions and Control Structures (Selection Statements and Loops)

Writing Program in C Expressions and Control Structures (Selection Statements and Loops) Writing Program in C Expressions and Control Structures (Selection Statements and Loops) Jan Faigl Department of Computer Science Faculty of Electrical Engineering Czech Technical University in Prague

More information

C Language Summary. Chris J Michael 28 August CSC 4103 Operating Systems Fall 2008 Lecture 2 C Summary

C Language Summary. Chris J Michael 28 August CSC 4103 Operating Systems Fall 2008 Lecture 2 C Summary Chris J Michael cmicha1@lsu.edu 28 August 2008 C Language Summary Heavily Influenced by the GNU C Reference Manual: http://www.gnu.org/software/gnu-c-manual/ Introduction -C98, or the original ANSI C standard

More information

Operators And Expressions

Operators And Expressions Operators And Expressions Operators Arithmetic Operators Relational and Logical Operators Special Operators Arithmetic Operators Operator Action Subtraction, also unary minus + Addition * Multiplication

More information

Lecture 3. More About C

Lecture 3. More About C Copyright 1996 David R. Hanson Computer Science 126, Fall 1996 3-1 Lecture 3. More About C Programming languages have their lingo Programming language Types are categories of values int, float, char Constants

More information

DEPARTMENT OF MATHS, MJ COLLEGE

DEPARTMENT OF MATHS, MJ COLLEGE T. Y. B.Sc. Mathematics MTH- 356 (A) : Programming in C Unit 1 : Basic Concepts Syllabus : Introduction, Character set, C token, Keywords, Constants, Variables, Data types, Symbolic constants, Over flow,

More information

Expressions and Statementst t. Assignment Operator. C Programming Lecture 6 : Operators. Expression

Expressions and Statementst t. Assignment Operator. C Programming Lecture 6 : Operators. Expression Expressions and Statementst t Expression C Programming Lecture 6 : Operators Combination of constants,variables,operators, operators and function calls a+b 3.0*x 9.66553 tan(angle) Statement An expression

More information

Basics of Programming

Basics of Programming Unit 2 Basics of Programming Problem Analysis When we are going to develop any solution to the problem, we must fully understand the nature of the problem and what we want the program to do. Without the

More information

OBJECT ORIENTED PROGRAMMING

OBJECT ORIENTED PROGRAMMING OBJECT ORIENTED PROGRAMMING LAB 1 REVIEW THE STRUCTURE OF A C/C++ PROGRAM. TESTING PROGRAMMING SKILLS. COMPARISON BETWEEN PROCEDURAL PROGRAMMING AND OBJECT ORIENTED PROGRAMMING Course basics The Object

More information

ME 461 C review Session Fall 2009 S. Keres

ME 461 C review Session Fall 2009 S. Keres ME 461 C review Session Fall 2009 S. Keres DISCLAIMER: These notes are in no way intended to be a complete reference for the C programming material you will need for the class. They are intended to help

More information

C OVERVIEW BASIC C PROGRAM STRUCTURE. C Overview. Basic C Program Structure

C OVERVIEW BASIC C PROGRAM STRUCTURE. C Overview. Basic C Program Structure C Overview Basic C Program Structure C OVERVIEW BASIC C PROGRAM STRUCTURE Goals The function main( )is found in every C program and is where every C program begins speed execution portability C uses braces

More information

Java provides a rich set of operators to manipulate variables. We can divide all the Java operators into the following g roups:

Java provides a rich set of operators to manipulate variables. We can divide all the Java operators into the following g roups: JAVA BASIC OPERATORS http://www.tuto rialspo int.co m/java/java_basic_o perato rs.htm Copyrig ht tutorialspoint.com Java provides a rich set of operators to manipulate variables. We can divide all the

More information

C OVERVIEW. C Overview. Goals speed portability allow access to features of the architecture speed

C OVERVIEW. C Overview. Goals speed portability allow access to features of the architecture speed C Overview C OVERVIEW Goals speed portability allow access to features of the architecture speed C fast executables allows high-level structure without losing access to machine features many popular languages

More information

Arithmetic Operators. Portability: Printing Numbers

Arithmetic Operators. Portability: Printing Numbers Arithmetic Operators Normal binary arithmetic operators: + - * / Modulus or remainder operator: % x%y is the remainder when x is divided by y well defined only when x > 0 and y > 0 Unary operators: - +

More information

Chapter 2: Using Data

Chapter 2: Using Data Chapter 2: Using Data Declaring Variables Constant Cannot be changed after a program is compiled Variable A named location in computer memory that can hold different values at different points in time

More information

Function I/O. Function Input and Output. Input through actual parameters. Output through return value. Input/Output through side effects

Function I/O. Function Input and Output. Input through actual parameters. Output through return value. Input/Output through side effects Function Input and Output Input through actual parameters Output through return value Only one value can be returned Input/Output through side effects printf scanf 2 tj Function Input and Output int main(void){

More information

Part I Part 1 Expressions

Part I Part 1 Expressions Writing Program in C Expressions and Control Structures (Selection Statements and Loops) Jan Faigl Department of Computer Science Faculty of Electrical Engineering Czech Technical University in Prague

More information

Prof. Navrati Saxena TA: Rochak Sachan

Prof. Navrati Saxena TA: Rochak Sachan JAVA Prof. Navrati Saxena TA: Rochak Sachan Operators Operator Arithmetic Relational Logical Bitwise 1. Arithmetic Operators are used in mathematical expressions. S.N. 0 Operator Result 1. + Addition 6.

More information

SOFTWARE DEVELOPMENT 1. Operators 2018W A. Ferscha (Institute of Pervasive Computing, JKU Linz)

SOFTWARE DEVELOPMENT 1. Operators 2018W A. Ferscha (Institute of Pervasive Computing, JKU Linz) SOFTWARE DEVELOPMENT 1 Operators 2018W (Institute of Pervasive Computing, JKU Linz) OPERATORS Operators are required to form expressions. Depending on the number of operands they take, they are called:

More information

Chapter 12 Variables and Operators

Chapter 12 Variables and Operators Chapter 12 Variables and Operators Highlights (1) r. height width operator area = 3.14 * r *r + width * height literal/constant variable expression (assignment) statement 12-2 Highlights (2) r. height

More information

Function I/O. Last Updated 10/30/18

Function I/O. Last Updated 10/30/18 Last Updated 10/30/18 Program Structure Includes Function Declarations void main(void){ foo = fun1(a, b); fun2(2, c); if(fun1(c, d)) { } } Function 1 Definition Function 2 Definition 2 tj Function Input

More information

CS113: Lecture 3. Topics: Variables. Data types. Arithmetic and Bitwise Operators. Order of Evaluation

CS113: Lecture 3. Topics: Variables. Data types. Arithmetic and Bitwise Operators. Order of Evaluation CS113: Lecture 3 Topics: Variables Data types Arithmetic and Bitwise Operators Order of Evaluation 1 Variables Names of variables: Composed of letters, digits, and the underscore ( ) character. (NO spaces;

More information

Engineering Computing I

Engineering Computing I Engineering Computing I Types, Operators, and Expressions Types Operators Expressions 2 1 2.1 Variable Names Names are made up of letters and digits The first character must be a letter The underscore

More information

Fundamentals of Programming CS-110. Lecture 3

Fundamentals of Programming CS-110. Lecture 3 Fundamentals of Programming CS-110 Lecture 3 Operators Operators Operators are words or symbols that cause a program to do something to variables. OPERATOR TYPES: Type Operators Usage Arithmetic + - *

More information

Le L c e t c ur u e e 2 To T p o i p c i s c t o o b e b e co c v o e v r e ed e Variables Operators

Le L c e t c ur u e e 2 To T p o i p c i s c t o o b e b e co c v o e v r e ed e Variables Operators Course Name: Advanced Java Lecture 2 Topics to be covered Variables Operators Variables -Introduction A variables can be considered as a name given to the location in memory where values are stored. One

More information

Fall, 2015 Prof. Jungkeun Park

Fall, 2015 Prof. Jungkeun Park Data Structures t and Algorithms Stacks Application Infix to Postfix Conversion Fall, 2015 Prof. Jungkeun Park Copyright Notice: This material is modified version of the lecture slides by Prof. Rada Mihalcea

More information

Sir Muhammad Naveed. Arslan Ahmed Shaad ( ) Muhammad Bilal ( )

Sir Muhammad Naveed. Arslan Ahmed Shaad ( ) Muhammad Bilal ( ) Sir Muhammad Naveed Arslan Ahmed Shaad (1163135 ) Muhammad Bilal ( 1163122 ) www.techo786.wordpress.com CHAPTER: 2 NOTES:- VARIABLES AND OPERATORS The given Questions can also be attempted as Long Questions.

More information

Reserved Words and Identifiers

Reserved Words and Identifiers 1 Programming in C Reserved Words and Identifiers Reserved word Word that has a specific meaning in C Ex: int, return Identifier Word used to name and refer to a data element or object manipulated by the

More information

The Arithmetic Operators. Unary Operators. Relational Operators. Examples of use of ++ and

The Arithmetic Operators. Unary Operators. Relational Operators. Examples of use of ++ and The Arithmetic Operators The arithmetic operators refer to the standard mathematical operators: addition, subtraction, multiplication, division and modulus. Op. Use Description + x + y adds x and y x y

More information

The Arithmetic Operators

The Arithmetic Operators The Arithmetic Operators The arithmetic operators refer to the standard mathematical operators: addition, subtraction, multiplication, division and modulus. Examples: Op. Use Description + x + y adds x

More information

C Language Part 1 Digital Computer Concept and Practice Copyright 2012 by Jaejin Lee

C Language Part 1 Digital Computer Concept and Practice Copyright 2012 by Jaejin Lee C Language Part 1 (Minor modifications by the instructor) References C for Python Programmers, by Carl Burch, 2011. http://www.toves.org/books/cpy/ The C Programming Language. 2nd ed., Kernighan, Brian,

More information

The New C Standard (Excerpted material)

The New C Standard (Excerpted material) The New C Standard (Excerpted material) An Economic and Cultural Commentary Derek M. Jones derek@knosof.co.uk Copyright 2002-2008 Derek M. Jones. All rights reserved. unary-expression castexpression unary-expression:

More information

bitwise inclusive OR Logical logical AND && logical OR Ternary ternary? : Assignment assignment = += -= *= /= %= &= ^= = <<= >>= >>>=

bitwise inclusive OR Logical logical AND && logical OR Ternary ternary? : Assignment assignment = += -= *= /= %= &= ^= = <<= >>= >>>= Operators in java Operator in java is a symbol that is used to perform operations. For example: +, -, *, / etc. There are many types of operators in java which are given below: Unary Operator, Arithmetic

More information

Guide for The C Programming Language Chapter 1. Q1. Explain the structure of a C program Answer: Structure of the C program is shown below:

Guide for The C Programming Language Chapter 1. Q1. Explain the structure of a C program Answer: Structure of the C program is shown below: Q1. Explain the structure of a C program Structure of the C program is shown below: Preprocessor Directives Global Declarations Int main (void) Local Declarations Statements Other functions as required

More information

C/C++ Programming Lecture 7 Name:

C/C++ Programming Lecture 7 Name: 1. The increment (++) and decrement (--) operators increase or decrease a variable s value by one, respectively. They are great if all you want to do is increment (or decrement) a variable: i++;. HOWEVER,

More information

Review of the C Programming Language for Principles of Operating Systems

Review of the C Programming Language for Principles of Operating Systems Review of the C Programming Language for Principles of Operating Systems Prof. James L. Frankel Harvard University Version of 7:26 PM 4-Sep-2018 Copyright 2018, 2016, 2015 James L. Frankel. All rights

More information

Variables and literals

Variables and literals Demo lecture slides Although I will not usually give slides for demo lectures, the first two demo lectures involve practice with things which you should really know from G51PRG Since I covered much of

More information

Perl: Arithmetic, Operator Precedence and other operators. Perl has five basic kinds of arithmetic:

Perl: Arithmetic, Operator Precedence and other operators. Perl has five basic kinds of arithmetic: Perl: Arithmetic, Operator Precedence and other operators Robert A. Fulkerson College of Information Science and Technology http://www.ist.unomaha.edu/ University of Nebraska at Omaha http://www.unomaha.edu/

More information

Structures, Operators

Structures, Operators Structures Typedef Operators Type conversion Structures, Operators Basics of Programming 1 G. Horváth, A.B. Nagy, Z. Zsóka, P. Fiala, A. Vitéz 10 October, 2018 c based on slides by Zsóka, Fiala, Vitéz

More information

XC Specification. 1 Lexical Conventions. 1.1 Tokens. The specification given in this document describes version 1.0 of XC.

XC Specification. 1 Lexical Conventions. 1.1 Tokens. The specification given in this document describes version 1.0 of XC. XC Specification IN THIS DOCUMENT Lexical Conventions Syntax Notation Meaning of Identifiers Objects and Lvalues Conversions Expressions Declarations Statements External Declarations Scope and Linkage

More information

Java provides a rich set of operators to manipulate variables. We can divide all the Java operators into the following groups:

Java provides a rich set of operators to manipulate variables. We can divide all the Java operators into the following groups: JAVA OPERATORS GENERAL Java provides a rich set of operators to manipulate variables. We can divide all the Java operators into the following groups: Arithmetic Operators Relational Operators Bitwise Operators

More information

RUBY OPERATORS. Ruby Arithmetic Operators: Ruby Comparison Operators:

RUBY OPERATORS. Ruby Arithmetic Operators: Ruby Comparison Operators: http://www.tutorialspoint.com/ruby/ruby_operators.htm RUBY OPERATORS Copyright tutorialspoint.com Ruby supports a rich set of operators, as you'd expect from a modern language. Most operators are actually

More information

Prepared by: Shraddha Modi

Prepared by: Shraddha Modi Prepared by: Shraddha Modi Introduction Operator: An operator is a symbol that tells the Computer to perform certain mathematical or logical manipulations. Expression: An expression is a sequence of operands

More information

Fundamentals of Programming

Fundamentals of Programming Fundamentals of Programming Lecture 3 - Constants, Variables, Data Types, And Operations Lecturer : Ebrahim Jahandar Borrowed from lecturer notes by Omid Jafarinezhad Outline C Program Data types Variables

More information

Applied Computer Programming

Applied Computer Programming Applied Computer Programming Representation of Numbers. Bitwise Operators Course 07 Lect.eng. Adriana ALBU, PhD Politehnica University Timisoara Internal representation All data, of any type, processed

More information

Lecture 3 Operators MIT AITI

Lecture 3 Operators MIT AITI Lecture 3 Operators MIT AITI - 2004 What are Operators? Operators are special symbols used for mathematical functions assignment statements logical comparisons Examples: 3 + 5 // uses + operator 14 + 5

More information

std::cout << "Size of long = " << sizeof(long) << " bytes\n\n"; std::cout << "Size of char = " << sizeof(char) << " bytes\n";

std::cout << Size of long =  << sizeof(long) <<  bytes\n\n; std::cout << Size of char =  << sizeof(char) <<  bytes\n; C++ Program Structure A C++ program must adhere to certain structural constraints. A C++ program consists of a sequence of statements. Every program has exactly one function called main. Programs are built

More information

Continued from previous lecture

Continued from previous lecture The Design of C: A Rational Reconstruction: Part 2 Jennifer Rexford Continued from previous lecture 2 Agenda Data Types Statements What kinds of operators should C have? Should handle typical operations

More information

Expressions. Arithmetic expressions. Logical expressions. Assignment expression. n Variables and constants linked with operators

Expressions. Arithmetic expressions. Logical expressions. Assignment expression. n Variables and constants linked with operators Expressions 1 Expressions n Variables and constants linked with operators Arithmetic expressions n Uses arithmetic operators n Can evaluate to any value Logical expressions n Uses relational and logical

More information

C/C++ Programming for Engineers: Working with Integer Variables

C/C++ Programming for Engineers: Working with Integer Variables C/C++ Programming for Engineers: Working with Integer Variables John T. Bell Department of Computer Science University of Illinois, Chicago Preview Every good program should begin with a large comment

More information

Week 2: Console I/O and Operators Arithmetic Operators. Integer Division. Arithmetic Operators. Gaddis: Chapter 3 (2.14,3.1-6,3.9-10,5.

Week 2: Console I/O and Operators Arithmetic Operators. Integer Division. Arithmetic Operators. Gaddis: Chapter 3 (2.14,3.1-6,3.9-10,5. Week 2: Console I/O and Operators Gaddis: Chapter 3 (2.14,3.1-6,3.9-10,5.1) CS 1428 Fall 2014 Jill Seaman 1 2.14 Arithmetic Operators An operator is a symbol that tells the computer to perform specific

More information

I Internal Examination Sept Class: - BCA I Subject: - Principles of Programming Lang. (BCA 104) MM: 40 Set: A Time: 1 ½ Hrs.

I Internal Examination Sept Class: - BCA I Subject: - Principles of Programming Lang. (BCA 104) MM: 40 Set: A Time: 1 ½ Hrs. I Internal Examination Sept. 2018 Class: - BCA I Subject: - Principles of Programming Lang. (BCA 104) MM: 40 Set: A Time: 1 ½ Hrs. [I]Very short answer questions (Max 40 words). (5 * 2 = 10) 1. What is

More information

Quick Reference Guide

Quick Reference Guide SOFTWARE AND HARDWARE SOLUTIONS FOR THE EMBEDDED WORLD mikroelektronika Development tools - Books - Compilers Quick Reference Quick Reference Guide with EXAMPLES for Basic language This reference guide

More information