C Programming - Expressions - Discussion
Discussion Forum : Expressions - General Questions (Q.No. 5)
5.
Which of the following are unary operators in C?
| 1. | ! |
| 2. | sizeof |
| 3. | ~ |
| 4. | && |
Answer: Option
Explanation:
An operation with only one operand is called unary operation.
Unary operators:
! Logical NOT operator.
~ bitwise NOT operator.
sizeof Size-of operator.
&& Logical AND is a logical operator.
Therefore, 1, 2, 3 are unary operators.
Discussion:
10 comments Page 1 of 1.
Vaqash Khan said:
2 years ago
Sizeof (arg) it is a function or operator.
In order to be a function.
Arg - for which we want to calculate the size like sizeof (int), sizeof (float), etc.
Function name: sizeof ():The function name ends with open and close parenthesis.
Return value: sizeof () function returns the value as computing the size of the data type.
In order to be a function.
Arg - for which we want to calculate the size like sizeof (int), sizeof (float), etc.
Function name: sizeof ():The function name ends with open and close parenthesis.
Return value: sizeof () function returns the value as computing the size of the data type.
Ansh said:
3 years ago
Airthematic Operator hierarchy in C Language is different from BODMAS.
In C, multiplication comes before division.
i.e;
* /% +-=.
In C, multiplication comes before division.
i.e;
* /% +-=.
Amoakok said:
6 years ago
Thanks all for explaining.
Pallab Patra said:
8 years ago
We have following Unary Operators in C :
! (logical negation),
~ (one\'s complement or bitwise negation),
" (unary minus),
+ (unary plus),
& (addressof),
* (dereferencing),
++ (pre-increment),
- -(pre-decrement),
sizeof() operator,
(type) or cast operator.
! (logical negation),
~ (one\'s complement or bitwise negation),
" (unary minus),
+ (unary plus),
& (addressof),
* (dereferencing),
++ (pre-increment),
- -(pre-decrement),
sizeof() operator,
(type) or cast operator.
(1)
Nagesh Bandari said:
1 decade ago
"++x" means "x" value will be changed before execution.
Assume x=1;
printf("++x",x);
++x operation changes the "x" value to "2".
Here O/P: 2.
x++ means "x" value will be changed after execution.
Assume x=5;
printf("x++",x);
O/P: 5 only.
But now "x" value is "6".
Assume x=1;
printf("++x",x);
++x operation changes the "x" value to "2".
Here O/P: 2.
x++ means "x" value will be changed after execution.
Assume x=5;
printf("x++",x);
O/P: 5 only.
But now "x" value is "6".
Jasna said:
1 decade ago
What is the difference between ++x; and x++;?
Venkat said:
1 decade ago
++ and -- are increment operators. What is difference?
Harsh said:
1 decade ago
The unary operator are ~, ++, --, sizeof, !
Akshay said:
1 decade ago
@Virendra: Unary operators are those who do not refer values at the left of the operation. e.g.!1 will return 0 you need not compare or evaluate two values. See Unary and Binary operator overloading to understand the concept more.
Virendra said:
1 decade ago
Are you mean that Logical NOT operator is not logical operator?
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