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c bitfield

Vladislav Novitskyi answered on October 3, 2022 Popularity 7/10 Helpfulness 2/10

answer c bitfield

c bitfield

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#include <stdio.h>

struct S {
    // will usually occupy 4 bytes:
    // 5 bits: value of b1
    // 11 bits: unused
    // 6 bits: value of b2
    // 2 bits: value of b3
    // 8 bits: unused
    unsigned b1 : 5, : 11, b2 : 6, b3 : 2;
};

int main(void)
{
    printf("%zu\n",sizeof(struct S)); // usually prints 4
}

Popularity 7/10 Helpfulness 2/10 Language c

Source: en.cppreference.com

Tags: c

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