Overloaded function selection rules

C++

• [1] no or unavoidable conversions -- array->pointer, T -> const T
• [2] integral promotion -- char->int, short->int, float->double
• [3] standard conversions -- int->double, double->int, derived* -> base*
• [4] user-defined conversions -- constructors and operators
• [5] ellipsis in function declaration -- ...

• better match for at least one argument and at least as good a match for every other argument