Logical operators of C let you combine two or more relational expressions into a single expression that evaluates to either true or false. Logical operators evaluate to either true or false, depending on the true or false value of their operands.

Data Recovery PRO DATA DOCTOR

Home | Order Online | Downloads | Contact Us | Software Knowledgebase

it | es | pt | fr | de | jp | kr | cn | ru | nl | gr


Logical Operators

Logical operators of C let you combine two or more relational expressions into a single expression that evaluates to either true or false. Logical operators evaluate to either true or false, depending on the true or false value of their operands.

If x is an integer variable, expressions using logical operators could be written in the following ways:

(x > 1) && (x < 5)
(x >= 2) && (x <= 4)


Operator

Symbol

Description

Example

Assignment operators

equal

=

assign the value of y to x

x = y

Mathematical operators

Increment

++

Increments the operand by one

++x, x++

Decrement

--

Decrements the operand by one

--x, x--

Addition

+

Adds two operands

x + y

Subtraction

-

Subtracts the second operand from the first

x - y

Multiplication

*

Multiplies two operands

x * y

Division

/

Divides the first operand by the second operand

x / y

Modulus

%

Gives the remainder when the first operand is divided by the second operand

x % y

Relational operators

Equal

= =

   Equality

x = = y

Greater than

   Greater than

x > y

Less than

   Less than

x < y

Greater than or equal to

>=

   Greater than or equal to

x >= y

Less than or equal to

<=

   Less than or equal to

x <= y

Not equal

!=

   Not equal to

x != y

Logical operators

AND

&&

True (1) only if both exp1 and exp2 are true; false (0) otherwise

exp1 && exp2

OR

||

True (1) if either exp1 or exp2 is true; false (0) only if both are false

exp1 || exp2

NOT

!

False (0) if exp1 is true; true (1) if exp1 is false

!exp1

Things to remember about logical expressions

x * = y
y - = z + 1
a / = b
x + = y / 8
y % = 3
is same as
is same as
is same as
is same as
is same as
x = x * y
y = y - z + 1
a = a / b
x = x + y / 8
y = y % 3

Sample Chapters from book DATA RECOVERY WITH AND WITHOUT PROGRAMMING by Author Tarun Tyagi
Data Recovery with & without Programming


Publishers of the Book
Number of Pages
ISBN
Price of the Book


BPB Publications, New Delhi, India
540
81-7656-922-4
$69.00 (Including Shipping Charges, Cost of Book and Other expenses, Free Source Code CD included with the Book)





Buy Data recovery Book

Previous page

page 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20

 
 

page 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37

 
 

page 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54

 
 

page 55 | 56 | 57 | 58 | 59 | 60

Next page

© Copyright 2002-2005 DataDoctor.Biz

Home | Contact us | Downloads | Services | Terms and conditions | Site map

Website Data Recovery | recuperación de Datos | Récupération de données | Datenrettung | Recupero dati | データ復旧 | 데이터 복구 | 数据恢复 | Восстановление данных | De terugwinning van gegevens | Ανάκτηση δεδομένων
Sitemap Site map1 2 3 4 | Spanish1 2 3 | French1 2 3 | German1 2 3 | Italian1 2 3 | Portuguese1 2 3 | Japanese1 2 3 | Korean1 2 3 | Chinese1 2 3 | Russian1 2 3 | Dutch1 2 3 | Greek1 2 3
Data Recovery Book English | Spanish | French | German | Italian | Portuguese | Japanese | Korean | Chinese | Russian | Dutch | Greek