Function overloading for string reference and const char pointer

Question

Is it legal to define two class functions, one overloaded with a reference to a string and the other overloaded with a const char*?

void funcA(const std::string& s)
void funcA(const char* s)

Can I guarantee that if I call funcA() with a const char* input, it will not call the string function? I'm asking because there is an implicit construction from a const char* to a string.

Joseph Mansfield · Accepted Answer · 2014-03-05 20:43:28Z

4

Yes, it's valid. If you pass a const char*, the second overload is an exact match, which is preferred over all other overloads, particularly ones involving user-defined conversions (such as converting to a const std::string).

answered Mar 5, 2014 at 20:43

Joseph Mansfield

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