vendor/bela/src/belatime/duration.cc
inline uint128 MakeU128(int64_t a) {
  uint128 u128 = 0;
  if (a < 0) {
    ++u128;
    ++a; // Makes it safe to negate 'a'
    a = -a;
  }
  u128 += static_cast<uint64_t>(a);
  return u128;
}
// Makes a uint128 from the absolute value of the given scalar.
Makes a uint128 from the absolute value of the given scalar.
Makes a uint128 from the absolute value of the given scalar .
inline uint128 MakeU128(int64_t a) {
  uint128 u128 = 0;
  if (a < 0) {
    ++u128;
    ++a; 
    a = -a;
  }
  u128 += static_cast<uint64_t>(a);
  return u128;
}
inline uint128 MakeU128 ( int64_t a ) { uint128 u128 = 0 ; if ( a < 0 ) { ++ u128 ; ++ a ; a = - a ; } u128 += static_cast < uint64_t > ( a ) ; return u128 ; }
Makes a uint128 from the absolute value of the given scalar.
Makes a uint128 from the absolute value of the given scalar .
// Makes it safe to negate 'a'