utils.hpp

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static const char* hex_char_to_bin(char c)
{
    switch(toupper(c))
    {
        case '0': return "0000";
        case '1': return "0001";
        case '2': return "0010";
        case '3': return "0011";
        case '4': return "0100";
        case '5': return "0101";
        case '6': return "0110";
        case '7': return "0111";
        case '8': return "1000";
        case '9': return "1001";
        case 'A': return "1010";
        case 'B': return "1011";
        case 'C': return "1100";
        case 'D': return "1101";
        case 'E': return "1110";
        case 'F': return "1111";
        default: return "0";
    }
}

inline std::string hex_to_binary(std::string hex) {
    std::string bin;
    for(unsigned i = 0; i != hex.length(); ++i)
        bin += hex_char_to_bin(hex[i]);
    return bin;
}
inline void parse_party_and_port(char ** arg, int * party, int * port) {
    *party = atoi (arg[1]);
    *port = atoi (arg[2]);
}

inline std::string Party(int p) {
    if (p == ALICE) 
        return "ALICE";
    else if (p == BOB)
        return "BOB";
    else return "PUBLIC";
}

inline uint64_t timeStamp() {
    struct timespec t;
    clock_gettime(CLOCK_REALTIME,&t);
    return (t.tv_sec*1000*1000+t.tv_nsec/1000);
}
inline double wallClock() {
    struct timespec t;
    clock_gettime(CLOCK_REALTIME,&t);
    return t.tv_sec+1e-9*t.tv_nsec;
}

template<typename t>
t bool_to_int(const bool * data, size_t len) {
    if (len != 0) len = (len > sizeof(t)*8 ? sizeof(t)*8 : len);
    else len = sizeof(t)*8;
    t res = 0;
    for(size_t i = 0; i < len-1; ++i) {
        if(data[i])
            res |= (1LL<<i);
    }
    if(data[len-1]) return -1*res;
    else return res;
}

inline uint64_t bool_to64(const bool * data) {
    uint64_t res = 0;
    for(int i = 0; i < 64; ++i) {
        if(data[i])
            res |= (1LL<<i);
    }
    return res;
}
inline block bool_to128(const bool * data) {
    return makeBlock(bool_to64(data+64), bool_to64(data));
}

inline void int64_to_bool(bool * data, uint64_t input, int length) {
    for (int i = 0; i < length; ++i) {
        data[i] = (input & 1)==1;
        input >>= 1;
    }
}