Move the exception where it belongs...

...(or at least away from where it doesn't belong.

src/config.cpp

@@ -74,14 +74,6 @@ line_source get_line_source(const std::vector<line_source>& line_src, int line)
 	return res;
 }
 
-} //end anon namespace
-
-const char* io_exception::what() const throw() {
-	return message.c_str();
-}
-
-namespace {
-
 //this function takes a macro and parses it into the macro followed by its
 //arguments. Arguments are seperated by spaces, but an argument appearing inside
 //braces is treated as a single argument.

src/config.hpp

@@ -41,17 +41,6 @@ struct line_source
 
 bool operator<(const line_source& a, const line_source& b);
 
-//an exception object used when an IO error occurs
-struct io_exception : public std::exception {
-	io_exception() {}
-	io_exception(const std::string& msg) : message(msg) {}
-	virtual ~io_exception() throw() {}
-
-	virtual const char* what() const throw();
-private:
-	std::string message;
-};
-
 struct preproc_define {
 	preproc_define() {}
 	explicit preproc_define(const std::string& val) : value(val) {}

src/filesystem.hpp

@@ -18,6 +18,17 @@
 #include <string>
 #include <vector>
 
+//an exception object used when an IO error occurs
+struct io_exception : public std::exception {
+	io_exception() {}
+	io_exception(const std::string& msg) : message(msg) {}
+	virtual ~io_exception() throw() {}
+
+	virtual const char* what() const throw() { return message.c_str(); }
+private:
+	std::string message;
+};
+
 enum FILE_NAME_MODE { ENTIRE_FILE_PATH, FILE_NAME_ONLY };
 
 //function which populates files with all the files and dirs