diff --git a/include/nlohmann/detail/input/input_adapters.hpp b/include/nlohmann/detail/input/input_adapters.hpp
index 7f87fc4c0..a2e395dde 100644
--- a/include/nlohmann/detail/input/input_adapters.hpp
+++ b/include/nlohmann/detail/input/input_adapters.hpp
@@ -658,7 +658,7 @@ typename container_input_adapter_factory_impl::container_input_adapter_factory<C
 // iterators it replaces did.
 template < typename ContainerType,
            enable_if_t < is_contiguous_byte_container<ContainerType>::value, int > = 0 >
-auto input_adapter(ContainerType && container)
+auto input_adapter(const ContainerType& container)
 -> decltype(input_adapter(container.data(), container.data() + container.size()))
 {
     return input_adapter(container.data(), container.data() + container.size());
diff --git a/include/nlohmann/detail/input/number_parse.hpp b/include/nlohmann/detail/input/number_parse.hpp
index 15245b52e..83a7f5237 100644
--- a/include/nlohmann/detail/input/number_parse.hpp
+++ b/include/nlohmann/detail/input/number_parse.hpp
@@ -54,7 +54,7 @@ bool parse_integer_unsigned(const char* first, const char* last, NumberUnsignedT
         {
             return false;
         }
-        x = x * 10u + digit;
+        x = (x * 10u) + digit;
     }
     value = static_cast<NumberUnsignedType>(x);
     // reject values that do not round-trip into a narrower NumberUnsignedType
@@ -84,7 +84,7 @@ bool parse_integer_signed(const char* first, const char* last, NumberIntegerType
         {
             return false;
         }
-        magnitude = magnitude * 10u + digit;
+        magnitude = (magnitude * 10u) + digit;
     }
     const std::int64_t x = (magnitude == limit)
                            ? (std::numeric_limits<std::int64_t>::min)()
@@ -146,7 +146,7 @@ bool parse_float_fast(const char* first, const char* last, DecimalPointType deci
             {
                 return false; // significand may not fit into uint64_t
             }
-            significand = significand * 10u + static_cast<std::uint64_t>(c - '0');
+            significand = (significand * 10u) + static_cast<std::uint64_t>(c - '0');
             ++num_digits;
             fractional_digits += static_cast<int>(seen_dot);
         }
@@ -189,7 +189,7 @@ bool parse_float_fast(const char* first, const char* last, DecimalPointType deci
             {
                 return false;
             }
-            exponent = exponent * 10 + (*p - '0');
+            exponent = (exponent * 10) + (*p - '0');
             any_exp_digit = true;
             if (JSON_HEDLEY_UNLIKELY(exponent > 9999))
             {
diff --git a/single_include/nlohmann/json.hpp b/single_include/nlohmann/json.hpp
index be3da54ca..9ec86686d 100644
--- a/single_include/nlohmann/json.hpp
+++ b/single_include/nlohmann/json.hpp
@@ -7645,7 +7645,7 @@ typename container_input_adapter_factory_impl::container_input_adapter_factory<C
 // iterators it replaces did.
 template < typename ContainerType,
            enable_if_t < is_contiguous_byte_container<ContainerType>::value, int > = 0 >
-auto input_adapter(ContainerType && container)
+auto input_adapter(const ContainerType& container)
 -> decltype(input_adapter(container.data(), container.data() + container.size()))
 {
     return input_adapter(container.data(), container.data() + container.size());
@@ -7837,7 +7837,7 @@ bool parse_integer_unsigned(const char* first, const char* last, NumberUnsignedT
         {
             return false;
         }
-        x = x * 10u + digit;
+        x = (x * 10u) + digit;
     }
     value = static_cast<NumberUnsignedType>(x);
     // reject values that do not round-trip into a narrower NumberUnsignedType
@@ -7867,7 +7867,7 @@ bool parse_integer_signed(const char* first, const char* last, NumberIntegerType
         {
             return false;
         }
-        magnitude = magnitude * 10u + digit;
+        magnitude = (magnitude * 10u) + digit;
     }
     const std::int64_t x = (magnitude == limit)
                            ? (std::numeric_limits<std::int64_t>::min)()
@@ -7929,7 +7929,7 @@ bool parse_float_fast(const char* first, const char* last, DecimalPointType deci
             {
                 return false; // significand may not fit into uint64_t
             }
-            significand = significand * 10u + static_cast<std::uint64_t>(c - '0');
+            significand = (significand * 10u) + static_cast<std::uint64_t>(c - '0');
             ++num_digits;
             fractional_digits += static_cast<int>(seen_dot);
         }
@@ -7972,7 +7972,7 @@ bool parse_float_fast(const char* first, const char* last, DecimalPointType deci
             {
                 return false;
             }
-            exponent = exponent * 10 + (*p - '0');
+            exponent = (exponent * 10) + (*p - '0');
             any_exp_digit = true;
             if (JSON_HEDLEY_UNLIKELY(exponent > 9999))
             {