Method try_resize

app/src/ThirdParty/fast_float.h:3531–3538

try to resize the vector, returning if the vector was resized.

  // try to resize the vector, returning if the vector was resized.
  FASTFLOAT_CONSTEXPR20 bool try_resize(size_t new_len, limb value) noexcept {
    if (new_len > capacity()) {
      return false;
    } else {
      resize_unchecked(new_len, value);
      return true;
    }
  }

  // check if any limbs are non-zero after the given index.
  // this needs to be done in reverse order, since the index