w_fill.h

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#ifndef __W_FILL_H
#define __W_FILL_H

#include <cstdint>

/*
 * These types are auto-initialized filler space for alignment
 * in structures.  The auto init helps with purify/valgrind.
 */
struct fill8 {
    uint8_t u;

    fill8() : u(0) {}
};

struct fill16 {
    uint16_t u;

    fill16() : u(0) {}
};

struct fill24 {
    uint8_t u[3];

    fill24() {
        u[0] = u[1] = u[2] = 0;
    }
};

struct fill32 {
    uint32_t u;

    fill32() : u(0) {}
};

// followings are for older codes that use "number of bytes" naming.
// when all of such codes are kicked out from our code base, these should go away too.
struct fill1 {
    uint8_t u;

    fill1() : u(0) {}
};

struct fill2 {
    uint16_t u;

    fill2() : u(0) {}
};

struct fill3 {
    uint8_t u[3];

    fill3() {
        u[0] = u[1] = u[2] = 0;
    }
};

struct fill4 {
    uint32_t u;

    fill4() : u(0) {}
};

#endif // __W_FILL_H