std::string ossimplugins::time::to_simple_string(Duration const& d)
{
typedef unsigned long ulong;
const double fs = d.as_day_frac() * 24 * 60 * 60; // in seconds
const ulong ls = std::abs(fs);
const ulong us = ulong(std::abs(fs * 1000ULL*1000)) % (1000ULL*1000);
const ulong s = ls % 60;
const ulong m = (ls/60) % 60;
const ulong h = (ls/60/60);
char buffer[1024];
const std::size_t N = s_printf(buffer, "%s%02d:%02d:%02d.%06ld", fs < 0 ? "-" : "", h, m, s, us);
assert(N);
return std::string(buffer, N);
}
