Declare as XBT_PUBLIC.

[simgrid.git] / include / xbt / string.hpp

diff --git a/include/xbt/string.hpp b/include/xbt/string.hpp
index 7d665ff..1916178 100644 (file)
--- a/include/xbt/string.hpp
+++ b/include/xbt/string.hpp
@@ -55,7 +55,8 @@ struct string_data {
  *    does not use refcouting/COW but has a small string optimization.
  */
 XBT_PUBLIC_CLASS string : private string_data {
-  static const char NUL;
+  static char NUL;
+
 public:
   // Types
   typedef std::size_t size_type;
@@ -79,7 +80,7 @@ public:
   {
     if (size == 0) {
       string_data::len = 0;
-      string_data::data = const_cast<char*>(&NUL);
+      string_data::data = &NUL;
     } else {
       string_data::len = size;
       string_data::data = new char[string_data::len + 1];
@@ -87,7 +88,7 @@ public:
       string_data::data[string_data::len] = '\0';
     }
   }
-  string() : string (const_cast<char*>(&NUL), 0) {}
+  string() : string(&NUL, 0) {}
   string(const char* s) : string(s, strlen(s)) {}
   string(string const& s) : string(s.c_str(), s.size()) {}
   string(string&& s)
@@ -95,9 +96,9 @@ public:
     string_data::len = s.string_data::len;
     string_data::data = s.string_data::data;
     s.string_data::len = 0;
-    s.string_data::data = const_cast<char*>(&NUL);
+    s.string_data::data = &NUL;
   }
-  string(std::string const& s) : string(s.c_str(), s.size()) {}
+  explicit string(std::string const& s) : string(s.c_str(), s.size()) {}
 
   // Assign
   void assign(const char* s, size_t size)
@@ -180,7 +181,7 @@ public:
   void clear()
   {
     string_data::len = 0;
-    string_data::data = const_cast<char*>(&NUL);
+    string_data::data = &NUL;
   }
 
   bool equals(const char* data, std::size_t len) const
@@ -299,14 +300,13 @@ typedef std::string string;
  *
  * @ingroup XBT_str
 */
-std::string string_printf(const char *fmt, ...);
+XBT_PUBLIC(std::string) string_printf(const char* fmt, ...);
 
 /** Create a C++ string from a C-style format
  *
  * @ingroup XBT_str
 */
-std::string string_vprintf(const char *fmt, va_list ap);
-
+XBT_PUBLIC(std::string) string_vprintf(const char* fmt, va_list ap);
 }
 }