// Type: decimal, selector function is called
public static int Test7f()
{
Data_decimal[] source = new Data_decimal[]{ new Data_decimal{name="Tim", num=20.51m},
new Data_decimal{name="John", num=10m},
new Data_decimal{name="Bob", num=2.33m}
};
decimal expected = 32.84m;
var actual = source.Sum((e) => e.num);
return ((expected == actual) ? 0 : 1);
}
