Operators in c language
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This document discusses different types of operators in C programming language. It describes arithmetic, relational, logical, assignment, increment/decrement, conditional, bitwise and special operators. For each type of operator, it provides the syntax, examples of use, and meaning or purpose. The key types of operators covered are arithmetic (for math operations), relational (for comparisons), logical (for conditional logic), and assignment (for assigning values). Examples are provided to demonstrate how each operator is used in C code.
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Operators in c language
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- 2. 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
- 3. 1. Arithmetic operators 2. Relational operators 3. Logical operators 4. Assignment operators 5. Increment and decrement operators 6. Conditional operators (ternary operator) 7. Bitwise operators 8. Special operators 3
- 4. Arithmetic operators are used to perform numerical calculations among the values. OPERATOR MEANING + Addition - Subtraction * Multiplication / Division % Modulo Division 4
- 6. Relational operator are used to compare two operands. Operands may be variable, constant or expression. OperatorOperator MeaningMeaning < Is less than <= Is less than equal to > Is greater than >= Is greater than equal to == Equal to != is not equal to 6
- 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
- 8. LOGICAL OPERATORS: OPERATOR MEANING && Logical AND || Logical OR ! Logical NOT These operators are used for testing more than one condition and making decisions. 'C' has three logical operators they are: 8
- 9. Example:-Example:- #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
- 10. ASSIGNMENT OPERATORS Assignment operator are used to assign the value or an expression or a variable to another variable. The syntax is variablename = expression; i.g. A=b; Operators: == , += , -= , *= , /= , %= , >>= , <<= , &= , 10
- 11. Increments & decrement operator is also called Unary . The increment operator (++++) adder on to the variable and decrement (- -- -) subtract one from the variable. There are following unary operator INCREMENT & DECREMENTINCREMENT & DECREMENT OPERATORSOPERATORS Operator Meaning ++x++x Pre increment - -x- -x Pre decrement x++x++ Post increment X- -X- - Post decrement 11
- 12. INCREMENT & DECREMENT OPERATORSINCREMENT & DECREMENT OPERATORS EXAMPLEEXAMPLE #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--); } 12
- 13. CONDITIONALCONDITIONAL OPERATORSOPERATORSThese conditional operator are used to construct conditional expressions of the form. Syntax: exp1?exp2:exp3. where exp1,exp2,exp3 are expressions. Operator: ?: (ternary operator) 13
- 14. Example:-Example:- #include<stdio.h> void main() { 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); } 14
- 15. Bitwise Operator:-Bitwise Operator:- Are used by the programmer to communicate directly with the hardware.These operator are used for designing bit or shifting them either right to left, left to right. Example:- OPERATOR MEANING & Bitwise AND | Bitwise OR ^ Bitwise Exclusive OR << Shift Left >> Shift Right 15
- 16. SPECIAL OPERATORSSPECIAL OPERATORS 'C' supports some special operators such as comma operator, sizeof operator and pointerpointer operators. Comma operator: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); 16
- 17. Special OperatorsSpecial Operators Contd…Contd… Sizeof Operator:Sizeof Operator: Sizeof is an operator used to return the number of bytes the operand occupies. Syntax: m=sizeof(sum); k=sizeof(2351); 17
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