core/vcsl/vcsl_length.cxx Source File

Go to the documentation of this file.
00001 // This is core/vcsl/vcsl_length.cxx
00002 #include "vcsl_length.h"
00003 #include <vcsl/vcsl_meter.h>
00004 
00005 //---------------------------------------------------------------------------
00006 // Is `new_unit' a compatible unit for the dimension ?
00007 //---------------------------------------------------------------------------
00008 bool vcsl_length::compatible_unit(vcsl_unit_sptr const& new_unit) const
00009 {
00010   return new_unit->cast_to_length_unit()!=0;
00011 }
00012 
00013 //---------------------------------------------------------------------------
00014 // Return the standard unit associated to the dimension
00015 //---------------------------------------------------------------------------
00016 vcsl_unit_sptr vcsl_length::standard_unit() const
00017 {
00018   return vcsl_meter::instance().ptr();
00019 }
00020 
00021 //---------------------------------------------------------------------------
00022 // Return the reference to the unique vcsl_length object
00023 //---------------------------------------------------------------------------
00024 vcsl_length_sptr vcsl_length::instance()
00025 {
00026   static vcsl_length_sptr instance_=new vcsl_length;
00027   return instance_;
00028 }