[Boost-sandbox-cvs] boost-sandbox/libs/units/example unit_example_16.cpp, 1.1.1.1, 1.2

[Matthias S. <mat...@us...>]

Update of /cvsroot/boost-sandbox/boost-sandbox/libs/units/example
In directory sc8-pr-cvs3.sourceforge.net:/tmp/cvs-serv2954

Modified Files:
	unit_example_16.cpp 
Log Message:
demonstrates use of trivial_inverse_conversion


Index: unit_example_16.cpp
===================================================================
RCS file: /cvsroot/boost-sandbox/boost-sandbox/libs/units/example/unit_example_16.cpp,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -d -r1.1.1.1 -r1.2
--- unit_example_16.cpp	16 Mar 2007 18:29:52 -0000	1.1.1.1
+++ unit_example_16.cpp	29 Mar 2007 16:48:14 -0000	1.2
@@ -64,26 +64,20 @@
 
 // IO helper class
 template<> 
-struct unit_info<nautical::system_tag,length_tag> 
+struct base_unit_info<length_tag,nautical::system_tag> 
 { 
     static std::string name()       { return "nautical mile"; }
     static std::string symbol()     { return "nmi"; }
 };
 
-// helpers for conversions between nautical length and SI length
+// helper for conversions between nautical length and SI length
 template<>
-struct base_unit_converter<length_tag,nautical::system_tag,SI::system_tag>
+struct base_unit_converter<length_tag,nautical::system_tag,SI::system_tag> :
+    public trivial_inverse_conversion
 {
     typedef double type;
     static type value() { return 1.852e3; }
 };
-
-template<>
-struct base_unit_converter<length_tag,SI::system_tag,nautical::system_tag>
-{
-    typedef double type;
-    static type value() { return 1.0/1.852e3; }
-};
 //]
 
 //[unit_example_16_class_snippet_2
@@ -103,7 +97,7 @@
 
 // IO helper class
 template<> 
-struct unit_info<imperial::system_tag,length_tag> 
+struct base_unit_info<length_tag,imperial::system_tag> 
 { 
     static std::string name()       { return "foot"; }
     static std::string symbol()     { return "ft"; }