Inlined free functions for ODR

include/boost/fixed_string/config.hpp

@@ -11,7 +11,7 @@
 #define BOOST_FIXED_STRING_CONFIG_HPP
 
 // Are we dependent on Boost?
-//#define BOOST_FIXED_STRING_USE_BOOST
+#define BOOST_FIXED_STRING_USE_BOOST
 
 // C++ version
 #if __cplusplus >= 201703L

include/boost/fixed_string/detail/fixed_string.hpp

@@ -19,6 +19,9 @@ namespace boost {
 namespace fixed_string {
 namespace detail {
 
+template<std::size_t, typename, typename>
+class fixed_string;
+
 // Because k-ballo said so
 template<class T>
 using is_input_iterator =
@@ -26,6 +29,7 @@ using is_input_iterator =
         ! std::is_integral<T>::value>;
 
 template<typename CharT, typename Traits>
+inline
 int
 lexicographical_compare(
     CharT const* s1, std::size_t n1,
@@ -43,6 +47,7 @@ lexicographical_compare(
 
 #ifdef BOOST_FIXED_STRING_STRING_VIEW
 template<typename CharT, typename Traits>
+inline
 int
 lexicographical_compare(
     basic_string_view<CharT, Traits> s1,
@@ -53,8 +58,20 @@ lexicographical_compare(
 }
 #endif
 
+template<std::size_t N, typename CharT, typename Traits >
+inline
+int
+lexicographical_compare(
+    const fixed_string<N, CharT, Traits>& s1,
+    CharT const* s2, std::size_t n2)
+{
+    return detail::lexicographical_compare<
+        CharT, Traits>(s1.data(), s1.size(), s2, n2);
+}
+
 #ifdef BOOST_FIXED_STRING_STRING_VIEW
 template<typename CharT, typename Traits>
+inline
 int
 lexicographical_compare(
     basic_string_view<CharT, Traits> s1,
@@ -65,6 +82,17 @@ lexicographical_compare(
 }
 #endif
 
+template<std::size_t N, std::size_t M, typename CharT, typename Traits>
+inline
+int 
+lexicographical_compare(
+    const fixed_string<N, CharT, Traits>& s1, 
+    const fixed_string<M, CharT, Traits>& s2)
+{
+  return detail::lexicographical_compare<CharT, Traits>(
+    s1.data(), s1.size(), s2.data(), s2.size());
+}
+
 // Maximum number of characters in the decimal
 // representation of a binary number. This includes
 // the potential minus sign.
@@ -78,6 +106,7 @@ max_digits(std::size_t bytes)
 }
 
 template<typename CharT, class Integer, typename Traits>
+inline
 CharT*
 raw_to_string(
     CharT* buf, Integer x, std::true_type)
@@ -103,6 +132,7 @@ raw_to_string(
 }
 
 template<typename CharT, class Integer, typename Traits>
+inline
 CharT*
 raw_to_string(
     CharT* buf, Integer x, std::false_type)
@@ -122,6 +152,7 @@ template<
     typename CharT,
     class Integer,
     typename Traits = std::char_traits<CharT>>
+inline
 CharT*
 raw_to_string(CharT* last, std::size_t size, Integer i)
 {
@@ -135,7 +166,8 @@ template<
     typename Traits,
     typename CharT,
     typename ForwardIt>
-  ForwardIt
+inline
+ForwardIt
 find_not_of(
   ForwardIt first, ForwardIt last, const CharT* str, std::size_t n) noexcept
 {

include/boost/fixed_string/fixed_string.hpp

@@ -1954,30 +1954,35 @@ private:
 template<
     std::size_t N, std::size_t M,
     typename CharT, typename Traits>
+inline
 void
 operator+(
     fixed_string<N, CharT, Traits>const& lhs,
     fixed_string<M, CharT, Traits>const& rhs) = delete;
 
 template<std::size_t N, typename CharT, typename Traits>
+inline
 void
 operator+(
     CharT const* lhs,
     fixed_string<N, CharT, Traits>const& rhs) = delete;
 
 template<std::size_t N, typename CharT, typename Traits>
+inline
 void
 operator+(
     CharT lhs,
     fixed_string<N, CharT, Traits> const& rhs) = delete;
 
 template<std::size_t N, typename CharT, typename Traits>
+inline
 void
 operator+(
     fixed_string<N, CharT, Traits> const& lhs,
     CharT const* rhs) = delete;
 
 template<std::size_t N, typename CharT, typename Traits>
+inline
 void
 operator+(
     fixed_string<N, CharT, Traits> const& lhs,
@@ -1992,6 +1997,7 @@ operator+(
 template<
     std::size_t N, std::size_t M,
     typename CharT, typename Traits>
+inline
 bool
 operator==(
     fixed_string<N, CharT, Traits> const& lhs,
@@ -2003,6 +2009,7 @@ operator==(
 template<
     std::size_t N, std::size_t M,
     typename CharT, typename Traits>
+inline
 bool
 operator!=(
     fixed_string<N, CharT, Traits> const& lhs,
@@ -2014,6 +2021,7 @@ operator!=(
 template<
     std::size_t N, std::size_t M,
     typename CharT, typename Traits>
+inline
 bool
 operator<(
     fixed_string<N, CharT, Traits> const& lhs,
@@ -2025,6 +2033,7 @@ operator<(
 template<
     std::size_t N, std::size_t M,
     typename CharT, typename Traits>
+inline
 bool
 operator<=(
     fixed_string<N, CharT, Traits> const& lhs,
@@ -2036,6 +2045,7 @@ operator<=(
 template<
     std::size_t N, std::size_t M,
     typename CharT, typename Traits>
+inline
 bool
 operator>(
     fixed_string<N, CharT, Traits> const& lhs,
@@ -2047,6 +2057,7 @@ operator>(
 template<
     std::size_t N, std::size_t M,
     typename CharT, typename Traits>
+inline
 bool
 operator>=(
     fixed_string<N, CharT, Traits> const& lhs,
@@ -2056,6 +2067,7 @@ operator>=(
 }
 
 template<std::size_t N, typename CharT, typename Traits>
+inline
 bool
 operator==(
     CharT const* lhs,
@@ -2067,6 +2079,7 @@ operator==(
 }
 
 template<std::size_t N, typename CharT, typename Traits>
+inline
 bool
 operator==(
     fixed_string<N, CharT, Traits> const& lhs,
@@ -2078,6 +2091,7 @@ operator==(
 }
 
 template<std::size_t N, typename CharT, typename Traits>
+inline
 bool
 operator!=(
     CharT const* lhs,
@@ -2089,6 +2103,7 @@ operator!=(
 }
 
 template<std::size_t N, typename CharT, typename Traits>
+inline
 bool
 operator!=(
     fixed_string<N, CharT, Traits> const& lhs,
@@ -2100,6 +2115,7 @@ operator!=(
 }
 
 template<std::size_t N, typename CharT, typename Traits>
+inline
 bool
 operator<(
     CharT const* lhs,
@@ -2111,6 +2127,7 @@ operator<(
 }
 
 template<std::size_t N, typename CharT, typename Traits>
+inline
 bool
 operator<(
     fixed_string<N, CharT, Traits> const& lhs,
@@ -2122,6 +2139,7 @@ operator<(
 }
 
 template<std::size_t N, typename CharT, typename Traits>
+inline
 bool
 operator<=(
     CharT const* lhs,
@@ -2133,6 +2151,7 @@ operator<=(
 }
 
 template<std::size_t N, typename CharT, typename Traits>
+inline
 bool
 operator<=(
     fixed_string<N, CharT, Traits> const& lhs,
@@ -2144,6 +2163,7 @@ operator<=(
 }
 
 template<std::size_t N, typename CharT, typename Traits>
+inline
 bool
 operator>(
     CharT const* lhs,
@@ -2155,6 +2175,7 @@ operator>(
 }
 
 template<std::size_t N, typename CharT, typename Traits>
+inline
 bool
 operator>(
     fixed_string<N, CharT, Traits> const& lhs,
@@ -2166,6 +2187,7 @@ operator>(
 }
 
 template<std::size_t N, typename CharT, typename Traits>
+inline
 bool
 operator>=(
     CharT const* lhs,
@@ -2177,6 +2199,7 @@ operator>=(
 }
 
 template<std::size_t N, typename CharT, typename Traits>
+inline
 bool
 operator>=(
     fixed_string<N, CharT, Traits> const& lhs,
@@ -2193,7 +2216,11 @@ operator>=(
 //
 //------------------------------------------------------------------------------
 
-template<std::size_t N, typename CharT, typename Traits>
+template<
+    std::size_t N, 
+    typename CharT, 
+    typename Traits>
+inline
 void
 swap(
     fixed_string<N, CharT, Traits>& lhs,
@@ -2205,6 +2232,7 @@ swap(
 template<
     std::size_t N, std::size_t M,
     typename CharT, typename Traits>
+inline
 void
 swap(
     fixed_string<N, CharT, Traits>& lhs,
@@ -2219,16 +2247,17 @@ swap(
 //
 //------------------------------------------------------------------------------
 
-#ifdef BOOST_FIXED_STRING_STRING_VIEW
 template<std::size_t N, typename CharT, typename Traits>
+inline
 std::basic_ostream<CharT, Traits>& 
 operator<<(std::basic_ostream<CharT, Traits>& os, 
     fixed_string<N, CharT, Traits> const& s)
 {
-    return os << static_cast<
+  // for the non-trivial CharT
-        string_view>(s);
+  for (const CharT& c : s)
+    os << c;
+  return os;
 }
-#endif
 
 //------------------------------------------------------------------------------
 //
@@ -2252,6 +2281,7 @@ template<
         std::is_integral<Integer>::value>::type
 #endif
 >
+inline
 fixed_string<detail::max_digits(sizeof(Integer))>
 to_fixed_string(Integer x);
 

include/boost/fixed_string/impl/fixed_string.hpp

@@ -787,6 +787,7 @@ assign_char(CharT, std::false_type) ->
 }
 
 template<class Integer, class>
+inline
 fixed_string<detail::max_digits(sizeof(Integer))>
 to_fixed_string(Integer x)
 {