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#define mp_eval(Func)       Func::value
 
template<int L, int R>
struct StaticMinimum
{
    static const int value = (L < R) ? L : R;
};
// Error: too few arguments for class template "StaticMinimum"
int main()
{
	mp_eval((StaticMinimum<9, 12>));
	mp_eval(StaticMinimum<9, 12>);
}

prog.cpp:12:30: error: macro "mp_eval" passed 2 arguments, but takes just 1
  mp_eval(StaticMinimum<9, 12>);
                              ^
prog.cpp: In function ‘int main()’:
prog.cpp:1:33: error: ‘::value’ has not been declared
 #define mp_eval(Func)       Func::value
                                 ^
prog.cpp:11:2: note: in expansion of macro ‘mp_eval’
  mp_eval((StaticMinimum<9, 12>));
  ^
prog.cpp:12:2: error: ‘mp_eval’ was not declared in this scope
  mp_eval(StaticMinimum<9, 12>);
  ^

Standard output is empty