Fix gcc 9 deprecated copy warnings.

Author: Romain-Geissler-1A

include/boost/xpressive/detail/core/adaptor.hpp

@@ -63,7 +63,7 @@ struct xpression_adaptor
     }
 
 private:
-    xpression_adaptor &operator =(xpression_adaptor const &);
+    BOOST_DELETED_FUNCTION(xpression_adaptor &operator =(xpression_adaptor const &))
 };
 
 ///////////////////////////////////////////////////////////////////////////////

include/boost/xpressive/detail/core/finder.hpp

@@ -49,8 +49,8 @@ struct boyer_moore_finder
     }
 
 private:
-    boyer_moore_finder(boyer_moore_finder const &);
-    boyer_moore_finder &operator =(boyer_moore_finder const &);
+    BOOST_DELETED_FUNCTION(boyer_moore_finder(boyer_moore_finder const &))
+    BOOST_DELETED_FUNCTION(boyer_moore_finder &operator =(boyer_moore_finder const &))
 
     boyer_moore<BidiIter, Traits> bm_;
 };
@@ -79,8 +79,8 @@ struct hash_peek_finder
     }
 
 private:
-    hash_peek_finder(hash_peek_finder const &);
-    hash_peek_finder &operator =(hash_peek_finder const &);
+    BOOST_DELETED_FUNCTION(hash_peek_finder(hash_peek_finder const &))
+    BOOST_DELETED_FUNCTION(hash_peek_finder &operator =(hash_peek_finder const &))
 
     template<typename ICase>
     BidiIter find_(BidiIter begin, BidiIter end, Traits const &tr, ICase) const
@@ -134,8 +134,8 @@ struct line_start_finder
     }
 
 private:
-    line_start_finder(line_start_finder const &);
-    line_start_finder &operator =(line_start_finder const &);
+    BOOST_DELETED_FUNCTION(line_start_finder(line_start_finder const &))
+    BOOST_DELETED_FUNCTION(line_start_finder &operator =(line_start_finder const &))
 
     char_class_type newline_;
 };
@@ -184,8 +184,8 @@ struct line_start_finder<BidiIter, Traits, 1u>
     }
 
 private:
-    line_start_finder(line_start_finder const &);
-    line_start_finder &operator =(line_start_finder const &);
+    BOOST_DELETED_FUNCTION(line_start_finder(line_start_finder const &))
+    BOOST_DELETED_FUNCTION(line_start_finder &operator =(line_start_finder const &))
 
     bool bits_[256];
 };
@@ -208,8 +208,8 @@ struct leading_simple_repeat_finder
     }
 
 private:
-    leading_simple_repeat_finder(leading_simple_repeat_finder const &);
-    leading_simple_repeat_finder &operator =(leading_simple_repeat_finder const &);
+    BOOST_DELETED_FUNCTION(leading_simple_repeat_finder(leading_simple_repeat_finder const &))
+    BOOST_DELETED_FUNCTION(leading_simple_repeat_finder &operator =(leading_simple_repeat_finder const &))
 };
 
 }}}

include/boost/xpressive/detail/core/matcher/alternate_matcher.hpp

@@ -119,7 +119,7 @@ namespace boost { namespace xpressive { namespace detail
         }
 
     private:
-        alternate_matcher &operator =(alternate_matcher const &);
+        BOOST_DELETED_FUNCTION(alternate_matcher &operator =(alternate_matcher const &))
 
         bool can_match_(char_type ch, Traits const &tr) const
         {

include/boost/xpressive/detail/core/matcher/attr_matcher.hpp

@@ -42,7 +42,7 @@ namespace boost { namespace xpressive { namespace detail
             return this->traits_.translate(ch1);
         }
     private:
-        char_translate &operator =(char_translate const &);
+        BOOST_DELETED_FUNCTION(char_translate &operator =(char_translate const &))
     };
 
     ///////////////////////////////////////////////////////////////////////////////
@@ -63,7 +63,7 @@ namespace boost { namespace xpressive { namespace detail
             return this->traits_.translate_nocase(ch1);
         }
     private:
-        char_translate &operator =(char_translate const &);
+        BOOST_DELETED_FUNCTION(char_translate &operator =(char_translate const &))
     };
 
     ///////////////////////////////////////////////////////////////////////////////

include/boost/xpressive/detail/core/matcher/optional_matcher.hpp

@@ -55,7 +55,7 @@ namespace boost { namespace xpressive { namespace detail
                 || this->xpr_.BOOST_NESTED_TEMPLATE push_match<Next>(state);
         }
 
-        optional_matcher &operator =(optional_matcher const &);
+        BOOST_DELETED_FUNCTION(optional_matcher &operator =(optional_matcher const &))
     };
 
     ///////////////////////////////////////////////////////////////////////////////
@@ -113,7 +113,7 @@ namespace boost { namespace xpressive { namespace detail
                 || this->xpr_.BOOST_NESTED_TEMPLATE push_match<Next>(state);
         }
 
-        optional_mark_matcher &operator =(optional_mark_matcher const &);
+        BOOST_DELETED_FUNCTION(optional_mark_matcher &operator =(optional_mark_matcher const &))
     };
 
 }}}

include/boost/xpressive/detail/core/matcher/simple_repeat_matcher.hpp

@@ -216,7 +216,7 @@ namespace boost { namespace xpressive { namespace detail
         }
 
     private:
-        simple_repeat_matcher &operator =(simple_repeat_matcher const &);
+        BOOST_DELETED_FUNCTION(simple_repeat_matcher &operator =(simple_repeat_matcher const &))
     };
 
     // BUGBUG can all non-greedy quantification be done with the fixed width quantifier?

include/boost/xpressive/detail/core/peeker.hpp

@@ -62,7 +62,7 @@ struct char_sink
     hash_peek_bitset<char_type> &bset_;
     Traits const &traits_;
 private:
-    char_sink &operator =(char_sink const &);
+    BOOST_DELETED_FUNCTION(char_sink &operator =(char_sink const &))
 };
 
 ///////////////////////////////////////////////////////////////////////////////
@@ -259,8 +259,8 @@ struct xpression_peeker
     }
 
 private:
-    xpression_peeker(xpression_peeker const &);
-    xpression_peeker &operator =(xpression_peeker const &);
+    BOOST_DELETED_FUNCTION(xpression_peeker(xpression_peeker const &))
+    BOOST_DELETED_FUNCTION(xpression_peeker &operator =(xpression_peeker const &))
 
     template<typename Traits>
     Traits const &get_traits_() const

include/boost/xpressive/detail/core/regex_impl.hpp

@@ -193,7 +193,7 @@ struct regex_impl
     #endif
 
 private:
-    regex_impl &operator =(regex_impl const &);
+    BOOST_DELETED_FUNCTION(regex_impl &operator =(regex_impl const &))
 };
 
 template<typename BidiIter>

include/boost/xpressive/detail/static/static.hpp

@@ -176,7 +176,7 @@ struct static_xpression
 
 private:
 
-    static_xpression &operator =(static_xpression const &);
+    BOOST_DELETED_FUNCTION(static_xpression &operator =(static_xpression const &))
 
     template<typename Char>
     void peek_next_(mpl::true_, xpression_peeker<Char> &peeker) const

include/boost/xpressive/detail/static/transforms/as_set.hpp

@@ -120,7 +120,7 @@ namespace boost { namespace xpressive { namespace grammar_detail
         }
 
     private:
-        merge_charset &operator =(merge_charset const &);
+        BOOST_DELETED_FUNCTION(merge_charset &operator =(merge_charset const &))
 
         template<typename Expr, typename Tag>
         void call_(Expr const &expr, Tag) const