text: #ifndef xpack_test_lang_cxx_compare
  #define xpack_test_lang_cxx_compare
      #pragma push_macro("xuser")
          #undef  xuser
          #define xuser mixc::test_lang_cxx_compare::inc
                  #include"lang/cxx/compare.hpp"
          #include"lang/cxx.hpp"
          #include"macro/xassert.hpp"
      #include"mixc.hpp"
  #pragma pop_macro("xuser")
  
      namespace mixc::test_lang_cxx_compare{
          xtest(compare){
              inc::c08 a = "";
              inc::c08 b = "";
  
              xassert_eq(0, a.compare(b));
  
              a = "1";
              xassert_eq(ixx(1) , a.compare(b));
              xassert_eq(ixx(-1), b.compare(a));
  
              a = "1";
              b = "0";
              xassert_eq(ixx(1), a.compare(b));
  
              a = "1";
              b = "1";
              xassert_eq(0, a.compare(b));
  
              a = "1";
              b = "2";
              xassert_eq(ixx(-1), a.compare(b));
  
              a = "1";
              b = "12";
              xassert_eq(ixx(-1), a.compare(b));
              xassert_eq(ixx(1) , b.compare(a));
  
              a = "2";
              b = "12";
              xassert_eq(ixx(1) , a.compare(b));
              xassert_eq(ixx(-1), b.compare(a));
          };
      }
  #endif