[BUG]: infinite hang when boost::ut::value<float>() is instantiated with large values

[proxict]

Given this test case

expect(_t(std::numeric_limits<float>::max()) == 123.0_f);

Expected Behavior

Test case fails and prints a reasonable test failure message

Actual Behavior

Test hangs indefinitely

https://godbolt.org/z/819xv47qf

Root cause of the problem

The problem stems from the following function where value overflows in the first loop iteration and the terminating condition never evaluates to false:

https://github.com/boost-ext/ut/blob/v2.1.1/include/boost/ut.hpp#L412-L424:

template <class T, class TValue>
[[nodiscard]] constexpr auto den_size(TValue value) -> T {
  constexpr auto precision = TValue(1e-7);
  T result{};
  TValue tmp{};
  do {
    value *= 10;
    tmp = value - T(value);
    ++result;
  } while (tmp > precision);

  return result;
}

Specifications

• Version: v.2.1.1
• Platform: Arch Linux
• GCC version: 14.2.1 20240910