CareerCup

Interview Question

  • -
    0
    of 0 votes
    10
    Answers

    How will you return

    int

    and

    char

    from a function in C?

    - bobbysanders007 on July 16, 2012 in United States Report Duplicate | Flag
    C

Country: United States

Comment hidden because of low score. Click to expand.
1
of 1 vote

struct A
{
    int a;
    char c;
};

A doSomething()
{
   A x;

   return (x);
}

- Anonymous on July 16, 2012 | Flag Reply
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0
of 0 votes

x is on stack. You won't be able to access on return. Allocating on heap and then returning the pointer can be one way.

- neer300 on July 16, 2012 | Flag
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0
of 0 votes

Though x is on stack we are sending content not address of x.. So no problem..

- Chandu on July 16, 2012 | Flag
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0
of 0 votes

Structs are passed by value. There is no problem here.

- eugene.yarovoi on July 16, 2012 | Flag
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0
of 0 votes

my bad

- neer300 on July 16, 2012 | Flag
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0
of 0 vote

int func(char * c, int a){
c=....; /* pointer to the char so changes will b reflected*/
a=....;
return (a);
}

- Anuda on July 16, 2012 | Flag Reply
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0
of 0 votes

You would need to use *c on the left side of the assignment, then

- eugene.yarovoi on July 16, 2012 | Flag
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0
of 0 votes

ya ryt..missed dat

- Anuda on July 16, 2012 | Flag
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0
of 0 vote

It's better to use the pointer as the parameter of the function.e.g void foo(int * re1,char *re2,...)

- notbad on July 17, 2012 | Flag Reply
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0
of 0 vote

main()
{
struct A
{
int a;
char c;
}
dosomething();

struct A dosomething()
{
struct A x={ 5,"a"};
return x;
}
}

- sivatejakambham on August 17, 2012 | Flag Reply


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