Fix lingering use of fast integers

Author: mborland

include/boost/decimal/decimal64_fast.hpp

@@ -33,9 +33,9 @@ namespace decimal {
 
 namespace detail {
 
-BOOST_DECIMAL_CONSTEXPR_VARIABLE auto d64_fast_inf = std::numeric_limits<std::uint_fast64_t>::max() - 3;
-BOOST_DECIMAL_CONSTEXPR_VARIABLE auto d64_fast_qnan = std::numeric_limits<std::uint_fast64_t>::max() - 2;
-BOOST_DECIMAL_CONSTEXPR_VARIABLE auto d64_fast_snan = std::numeric_limits<std::uint_fast64_t>::max() - 1;
+BOOST_DECIMAL_CONSTEXPR_VARIABLE auto d64_fast_inf = std::numeric_limits<std::uint64_t>::max() - 3;
+BOOST_DECIMAL_CONSTEXPR_VARIABLE auto d64_fast_qnan = std::numeric_limits<std::uint64_t>::max() - 2;
+BOOST_DECIMAL_CONSTEXPR_VARIABLE auto d64_fast_snan = std::numeric_limits<std::uint64_t>::max() - 1;
 
 } // namespace detail
 
@@ -1375,7 +1375,7 @@ struct numeric_limits<boost::decimal::decimal_fast64_t>
     static constexpr int  min_exponent10 = min_exponent;
     static constexpr int  max_exponent = 384;
     static constexpr int  max_exponent10 = max_exponent;
-    static constexpr bool traps = numeric_limits<std::uint_fast64_t>::traps;
+    static constexpr bool traps = numeric_limits<std::uint64_t>::traps;
     static constexpr bool tinyness_before = true;
 
     // Member functions