system_error.cpp

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00032 
00033 #include "Error.hpp"
00034 #include "system_error.hpp"
00035 
00036 namespace MaximInterfaceCore {
00037 
00038 using std::string;
00039 
00040 error_condition error_category::default_error_condition(int code) const {
00041   return error_condition(code, *this);
00042 }
00043 
00044 bool error_category::equivalent(int code,
00045                                 const error_condition & condition) const {
00046   return default_error_condition(code) == condition;
00047 }
00048 
00049 bool error_category::equivalent(const error_code & code, int condition) const {
00050   return *this == code.category() && code.value() == condition;
00051 }
00052 
00053 const error_category & system_category() {
00054   static class : public error_category {
00055   public:
00056     virtual const char * name() const { return "system"; }
00057 
00058     virtual string message(int condition) const {
00059       return defaultErrorMessage(condition);
00060     }
00061   } instance;
00062   return instance;
00063 }
00064 
00065 static string formatWhat(const error_code & ec, string what_arg = string()) {
00066   if (!what_arg.empty()) {
00067     what_arg += ": ";
00068   }
00069   what_arg += ec.message();
00070   return what_arg;
00071 }
00072 
00073 system_error::system_error(const error_code & ec)
00074     : runtime_error(formatWhat(ec)), code_(ec) {}
00075 
00076 system_error::system_error(const error_code & ec, const string & what_arg)
00077     : runtime_error(formatWhat(ec, what_arg)), code_(ec) {}
00078 
00079 system_error::system_error(const error_code & ec, const char * what_arg)
00080     : runtime_error(formatWhat(ec, what_arg)), code_(ec) {}
00081 
00082 system_error::system_error(int ev, const error_category & ecat)
00083     : runtime_error(formatWhat(error_code(ev, ecat))), code_(ev, ecat) {}
00084 
00085 system_error::system_error(int ev, const error_category & ecat,
00086                            const string & what_arg)
00087     : runtime_error(formatWhat(error_code(ev, ecat), what_arg)),
00088       code_(ev, ecat) {}
00089 
00090 system_error::system_error(int ev, const error_category & ecat,
00091                            const char * what_arg)
00092     : runtime_error(formatWhat(error_code(ev, ecat), what_arg)),
00093       code_(ev, ecat) {}
00094 
00095 } // namespace MaximInterfaceCore