Query

[shruthi82]

struct abc
{
int a: 4;
char b: 2;
int ab:5;
};
main()
{
struct abc w;
cout << sizeof(w);
}
Question: The value of "w" is printed as 8 in Visual studio C++. How is the space allowed for int and char?

[Meetee]

struct abc
{
int a: 4;
char b: 2;
int ab:5;
};
main()
{
struct abc w;
cout << sizeof(w);
}
Question: The value of "w" is printed as 8 in Visual studio C++. How is the space allowed for int and char?

For integer, size is 4, and for char size is 1.

[Arulmurugan]

struct abc
{
int a: 4;
char b: 2;
int ab:5;
};
main()
{
struct abc w;
cout << sizeof(w);
}
Question: The value of "w" is printed as 8 in Visual studio C++. How is the space allowed for int and char?

Hi,
Bit fields are completely depends on compiler, but from you example maximum 4 bytes are enough, and the same i can get from gcc also. i don't know why VC++ returns 8. check you compiler manual.

Regards,
Arul

[weaknessforcats]

Bit fields are deprecated in C++.

C++ developers use a bitset.