C Programming - Complicated Declarations - Discussion


What will be the output of the program?

typedef void v;
typedef int i;

int main()
    v fun(i, i);
    fun(2, 3);
    return 0;
v fun(i a, i b)
    i s=2;
    float i;
    printf("%d,", sizeof(i));
    printf(" %d", a*b*s);

[A]. 2, 8
[B]. 4, 8
[C]. 2, 4
[D]. 4, 12

Answer: Option D


No answer description available for this question.

Sharath said: (Sep 26, 2010)  
How sizeof(i) is 4 ? Please explain.

Sundar said: (Feb 3, 2011)  

Because float i; ---> 'i' is a float variable.

Hence size of float is 4 bytes.

Bhavya said: (Mar 18, 2011)  
Yes. Sundar is correct.

Prakash said: (Oct 29, 2011)  
Yes sundar answer 4is correct but how it is 12 can any body explain please.

Jes said: (Dec 10, 2011)  
Here from fun(2,3)the value of a and b is 2,3&s value is 2

Sandy said: (Jun 15, 2012)  
@Sundar it may be the case that instead of taking i as float variable, it may treat it as a integer. Because typedef int i.

Means i is new name for integer.

Priya said: (Aug 11, 2012)  
But the i is the typdef of int which is of 2 byte than why 4 ?

Sarika said: (Oct 22, 2012)  
i is defined as float within the function and printf statement is also witin the same function so the latest value will be hold. 4 is correct

Sagar said: (Dec 2, 2013)  
In this from global and local variable, local gets higher priority so that float i considered.

Saket said: (Oct 13, 2014)  
Can anybody please explain when we declare float int; it will give an error but when we use typedef int I then float i; does not give an error why?

Sunil said: (Aug 1, 2015)  
i is declared as float.

Lavanya said: (Oct 7, 2015)  
Can you explain this I can't understand?

Neha said: (Nov 28, 2016)  
Please, anybody explain the value of i.

Udhaya said: (Nov 30, 2016)  
typedef void i means? Anyone explain me.

Prakash Gautam said: (Jun 13, 2017)  
Here i is in sizeof is from float i not from typedef you can check it by taking char i instead of float i than find the sizeof(i) it will give 1.

Prakash Gautam said: (Jun 13, 2017)  
The typedef int i is global and float i is local and local variable has more priority in function.

Ajay said: (Jul 11, 2017)  
The float i is local variable so it has max priority than typedef int i which is global variable.

Shyam said: (Jul 27, 2017)  
Hi, please explain the 3 bit which is given to b.

Ashok said: (Sep 29, 2018)  
Float variable takes 4bytes and the remaining statement will be computed as a*b*s=2*3*2=12 first statement it will print size and then computation.

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