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Categories >> Software >> Programming Languages >> C++ >> C++ General


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What is the difference between = and == in C?
 Question Submitted By :: C++-General
I also faced this Question!!     Answer Posted By  
# 1
= operator in C language is used to assign the value of
right-hand side value/variable/expression to the left hand
side variable.

== operator in C/C++ language is used to check the value of
left hand variable/expression with the right hand
variable/expression. whether the two values are equal or
not. It returns true if these are equal else it will return
Is This Answer Correct ?    55 Yes 3 No
Anita Sachdeva
# 2
== --->comparision
Is This Answer Correct ?    41 Yes 4 No
# 3
1. First of all = is a assignment operator and == is a
comparision operator
2.= give you the same vale like x=y means if x=5 then y=5
on the otehr hand if x==y then it will give you the true or
eg if x==5
then return true
Is This Answer Correct ?    26 Yes 4 No
# 4
= Assignment Operator
== Comparision Operator

One Intresting Difference between these two is in the =
operator the left side can not be a const, while in == we
can place Const in either side.
eg. x = 5 //correct
5 = x // Incorrect

but X == 5 // CORRECT
5 == X // Correct and Preffered to use left value
as constant to avoid the unwanted bug.
Is This Answer Correct ?    13 Yes 2 No
# 5
= it is used to assign a variable
== it is used to comparison of vale
Is This Answer Correct ?    10 Yes 1 No
# 6
= is the assigment operator

=is used to copy
a=5 means, copy just that value for 'a'.
== is comparision operator

void main()
int a;
printf("if the is not equal to 5");
Is This Answer Correct ?    10 Yes 3 No
K.s. Karthick Prabu
# 7
= is used to assign the values to the variables.

Eg:- int a=5,b;

== is used for comparison purpose.

Eg:- if(a==b)
Is This Answer Correct ?    8 Yes 1 No
# 8
= is assignment operator. It is used to assigne a value to a
and == is a comparison operator is is used to compare to values.
Is This Answer Correct ?    7 Yes 3 No
Vaibhav Meena
# 9
give the new ans 
Is This Answer Correct ?    5 Yes 3 No
# 10
= operator is assignment operator

== is operator comparision two values
Is This Answer Correct ?    2 Yes 0 No
Datta Khilari

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class Foo { int x; public: Foo(int I); }; If a class does not have a copy constructor explicitly defined one will be implicitly defined for it. Referring to the sample code above, which one of the following declarations is the implicitly created copy constructor? a) Foo(Foo *f); b) Foo(Foo &f); c) Foo(const Foo *f); d) Foo(const Foo &f); e) Foo(int); Quark 3
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