Operators in C Programming

Operators in C Programming

• 1.
  OPERATORS N.V.RAJA SEKHAR REDDY CProgramming Tutorials www.programming9.com
• 2.
  What is anoperator?  An operator is a symbol that tells the computer to perform certain mathematical or logical manipulations.  These operators are used in programs to manipulate data and variables. 2 www.programming9.com
• 3.
  Types of Operators 1.Arithmetic operators 2. Relational operators 3. Logical operators 4. Assignment operators 5. Increment and decrement operators 6. Conditional operators 7. Bitwise operators 8. Special operators3 www.programming9.com
• 4.
  ARITHMETIC OPERATORS:  Arithmeticoperators are used to perform numerical calculations among the values. OPERATOR MEANING + Addition - Subtraction * Multiplication / Division % Modulo Division 4 www.programming9.com
• 5.
  #include<stdio.h> int main() { int a,b, add, sub, mul, div, rem; printf("Enter a, b values : "); scanf("%d%d",&a,&b); // Reading two values add=a+b; // Addition Operator sub=a-b; // Subtraction Operator mul=a*b; // Multiplication Operator div=a/b; // Division Operator rem=a%b; // Remainder (Modulo) Operator printf("Result of addition is=%dn", add); printf("Result of subtraction=%dn", sub); printf("Result of multiplication is=%dn", mul); printf("Result of division is=%dn", div); printf("Result of remainder=%dn",rem); return 0; } 5 www.programming9.com
• 6.
  RELATIONAL OPERATOR:  RelationalOperators are used to compare two quantities and take certain decision depending on their relation. If the specified relation is true it returns one. If the specified relation is false it returns zero. OPERATOR MEANING < Is less than <= Is less than or equal to > Is greater than >= Is greater than or equal to == Is equal to != Is not equal to 6 www.programming9.com
• 7.
  #include<stdio.h> void main() { int a,b; printf(“Enter values for a and b : "); scanf("%d %d", &a, &b); printf("n The < value of a is %d", a<b); printf("n The <= value of a is %d", a<=b); printf("n The > value of a is %d", a>b); printf("n The >= value of a is %d", a>=b); printf("n The == value of a is %d", a==b); printf("n The != value of a is %d", a!=b); } 7 www.programming9.com Example Program
• 8.
  LOGICAL OPERATORS:  Theseoperators are used for testing more than one condition and making decisions. 'c' has three logical operators they are: OPERATOR MEANING && Logical AND || Logical OR ! Logical NOT 8 www.programming9.com
• 9.
  Logical Operators ExampleProgram #include<stdio.h> void main() { int a, b; printf(“Enter values for a and b : "); scanf(“%d %d", &a, &b); printf("n %d",(a<b)&&(a!=b)); printf("n %d",(a<b)||(b<a)); printf("n %d",!(a==b)); } 9 www.programming9.com
• 10.
  ASSIGNMENT OPERATORS  Theseoperators are used for assigning the result of an expression to a variable.  b=a; OPERATORS: ==, +=, -=, *=, /=, %=, >>=, <<=, &=, |=, ^= 10 www.programming9.com
• 11.
  Assignment Operators Example #include<stdio.h> voidmain() { int a, b, c; printf("Enter the values for a and b : "); scanf("%d %d",&a,&b); printf("n the values of= is:%d",c=a+b); printf("n the values of +=is:%d",c+=b); printf("n the value of-= is:%d",c-=a); printf("n the value of *=is:%d",c*=a); printf("n the value of /=is:%d",c/=b); printf("n the value of %=is:%d",c%=b); } 11 www.programming9.com
• 12.
  INCREMENT & DECREMENT OPERATORS Twomost useful operators which are present in 'c' are increment and decrement operators. Operators: ++ and -- The operator ++ adds one to the operand The operator -- subtracts one from the operand. Both are unary operators and can be used as pre or post increment/decrement. 12 www.programming9.com
• 13.
  INCREMENT & DECREMENTOPERATORS EXAMPLE #include<stdio.h> void main() { int a,b,c; printf("Enter the values for a and b :"); scanf("%d %d", &a, &b); printf("n The value of c is %d", c=++a); printf("n The value of c is %d", c=a++); printf("n The value of c is %d", c=--b); printf("n The value of c is %d", c=b--); } 13 www.programming9.com
• 14.
  CONDITIONAL OPERATORS These conditionaloperator are used to construct conditional expressions of the form. Syntax: exp1?exp2:exp3. where exp1,exp2,exp3 are expressions. Operator: ?: (ternary operator) 14 www.programming9.com
• 15.
  Conditional Operators Example #include<stdio.h> voidmain() { int a, b, x; printf("Enter the values of a add b : "); scanf("%d %d", &a, &b); x=(a>b)?a:b; printf("Biggest Value is :%d",x); } 15 www.programming9.com
• 16.
  BITWISE OPERATORS  Theseoperators works on bit level  Applied to Integers only OPERATOR MEANING & Bitwise AND | Bitwise OR ^ Bitwise Exclusive OR << Shift Left >> Shift Right 16 www.programming9.com
• 17.
  SPECIAL OPERATORS 'C' supportssome special operators such as comma operator, sizeof operator and pointer operators. Comma operator: the comma operator is used to combine related expressions. A comma linked list of expressions are evaluated left to right and the value of right most expression is the value of combined expression.. Example: value=(x=10, y=5, x+y); 17 www.programming9.com
• 18.
  Special Operators Contd… SizeofOperator: Sizeof is an operator used to return the number of bytes the operand occupies. Syntax: m=sizeof(sum); k=sizeof(2351); 18 www.programming9.com
• 19.
  www.programming9.com Like us @ www.facebook.com/programming9 19www.programming9.com