X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fsupport%2Fstrfwd.h;h=eef3a83a0ce44a04eeb42ff55e0e57f45a8415ff;hb=cf14e814124ccbc8155fa1dde98d03be319c0e87;hp=e40ec1c4b8b0beeddbced9f404507918972e45b0;hpb=351363c599db664d612fbe1b426403f91758de05;p=lyx.git

diff --git a/src/support/strfwd.h b/src/support/strfwd.h
index e40ec1c4b8..eef3a83a0c 100644
--- a/src/support/strfwd.h
+++ b/src/support/strfwd.h
@@ -13,14 +13,6 @@
 #ifndef STRFWD_H
 #define STRFWD_H
 
-// This includes does nothing but defining _LIBCPP_VERSION
-// if libc++ is used (rather than libstdc++) - we first
-// check if we have at least a c++03 standard before
-// including the file
-#if (__cplusplus > 199711L)
-#include <ciso646>
-#endif
-
 #ifdef USE_WCHAR_T
 
 // Prefer this if possible because GNU libstdc++ has usable
@@ -31,13 +23,22 @@ namespace lyx { typedef wchar_t char_type; }
 
 #else
 
-#include <boost/cstdint.hpp>
-namespace lyx { typedef boost::uint32_t char_type; }
+#include <cstdint>
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1600)
+namespace lyx { typedef uint32_t char_type; }
+#include "support/numpunct_lyx_char_type.h" // implementation for our char_type needed
+#else
+namespace lyx { typedef std::uint32_t char_type; }
+#endif
 
 #endif
 
 // Forward definitions do not work with libc++
-#ifdef  _LIBCPP_VERSION
+// For gcc5 with the new std::string ABI forward declarations would work in
+// principle, but I am not sure whether we want non-standard
+// "namespace __cxx11" in our sources.
+#if defined(USE_LLVM_LIBCPP) || defined(USE_GLIBCXX_CXX11_ABI)
 #include <string>
 #else
 
@@ -62,13 +63,21 @@ typedef basic_istream<char, char_traits<char> > istream;
 typedef basic_ostream<char, char_traits<char> > ostream;
 typedef basic_ostringstream<char, char_traits<char>, allocator<char> > ostringstream;
 
-} // namepace std
+} // namespace std
 
 #endif
 
+
+
+
+
 namespace lyx {
 
-/// String type for storing the main text in UCS4 encoding
+/**
+ * String type for storing the main text in UCS4 encoding.
+ * Use std::string only in cases 7-bit ASCII is to be manipulated
+ * within the variable.
+ */
 typedef std::basic_string<char_type, std::char_traits<char_type>,
 	std::allocator<char_type> > docstring;
 
@@ -91,6 +100,15 @@ std::string const & empty_string();
 // defined in docstring.cpp
 bool operator==(docstring const &, char const *);
 
+#ifdef STD_STRING_USES_COW
+template<typename Char> class trivial_string;
+typedef trivial_string<char> trivstring;
+typedef trivial_string<char_type> trivdocstring;
+#else
+typedef std::string trivstring;
+typedef docstring trivdocstring;
+#endif
+
 } // namespace lyx
 
 #endif