#include "common.h"

bool common_bit_set(long long value, byte position) { return value & (1L << position); }

// I could do this through non-void methods with returns in one copy,
// but this variant is slightly faster, and needs less typing in client code
#define M_common(SUFFIX, TYPE) \
    void common_set_bit##SUFFIX(TYPE *variable, byte position)    { *variable |= 1L << position;    } \
    void common_unset_bit##SUFFIX(TYPE *variable, byte position)  { *variable &= ~(1L << position); } \
    void common_toggle_bit##SUFFIX(TYPE *variable, byte position) { *variable ^= 1L << position;    } \
    void common_modify_bit##SUFFIX(TYPE *variable, byte position, bool set) \
        { set ? common_set_bit##SUFFIX(variable, position) : common_unset_bit##SUFFIX(variable, position); }

M_common(b, byte)
M_common(w, word)
M_common(d, dword)