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#include "util/bit_packing.hh"
#include "util/exception.hh"
namespace util {
namespace {
template <bool> struct StaticCheck {};
template <> struct StaticCheck<true> { typedef bool StaticAssertionPassed; };
typedef StaticCheck<sizeof(float) == 4>::StaticAssertionPassed FloatSize;
} // namespace
uint8_t RequiredBits(uint64_t max_value) {
if (!max_value) return 0;
uint8_t ret = 1;
while (max_value >>= 1) ++ret;
return ret;
}
void BitPackingSanity() {
const detail::FloatEnc neg1 = { -1.0 }, pos1 = { 1.0 };
if ((neg1.i ^ pos1.i) != 0x80000000) UTIL_THROW(Exception, "Sign bit is not 0x80000000");
// TODO: more checks.
}
} // namespace util
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