#ifndef ETHSERP_BIGNUM
#define ETHSERP_BIGNUM

const std::string nums = "0123456789";

const std::string tt256 = 
"115792089237316195423570985008687907853269984665640564039457584007913129639936"
;

const std::string tt256m1 = 
"115792089237316195423570985008687907853269984665640564039457584007913129639935"
;

const std::string tt255 =
"57896044618658097711785492504343953926634992332820282019728792003956564819968";

const std::string tt176 =
"95780971304118053647396689196894323976171195136475136";

std::string unsignedToDecimal(unsigned branch);

std::string decimalAdd(std::string a, std::string b);

std::string decimalMul(std::string a, std::string b);

std::string decimalSub(std::string a, std::string b);

std::string decimalDiv(std::string a, std::string b);

std::string decimalMod(std::string a, std::string b);

std::string decimalModExp(std::string b, std::string e, std::string m);

bool decimalGt(std::string a, std::string b, bool eqAllowed=false);

unsigned decimalToUnsigned(std::string a);

#define utd unsignedToDecimal
#define dtu decimalToUnsigned

#endif