const_functions.h

#pragma once
#include <cstdint>
 
constexpr uint32_t rshift_round(uint32_t value, uint32_t rshift) {
    return (value + (1 << (rshift - 1))) >> rshift; // (Rohan) I never was quite 100% sure of this...
}
 
constexpr int32_t rshift_round_signed(int32_t value, uint32_t rshift) {
    return (value + (1 << (rshift - 1))) >> rshift; // (Rohan) I never was quite 100% sure of this...
}

inline constexpr int32_t mod(int32_t a, int32_t b) {
    return ((a % b) + b) % b;
}