CODEWITHSUNDEEP
c++
yonutix
yonutix

Reputation: 2439

Parameter passing error

I have made a function like this:

void function(Objectx &x);

And I call the function like this:

Objectx o;
function(o);

in the same class.

When I compile it I get this:

error: no matching function for call to ‘function(Objectx)’
note: candidate is: void function (Objectx&)

Sorry if is a lame question, but I didn't find a solution anywhere. Do you have any suggestions?

Upvotes: 0

Views: 413

Answers (1)

Ben Voigt
Ben Voigt

Reputation: 283674

I don't think you've shown the real code causing the error. (For one thing, the alleged code has Obectx and the error says Objectx)

That error would occur if you passed a temporary value (rvalue), because an non-const reference cannot bind to an rvalue.

If the function doesn't change its parameter, change the signature to:

void function(const Objectx &x);

If the function does change its parameter, you will need to store the temporary value to a variable, and pass the variable. That way any changes made by the function end up in a variable you can access after the call.

Upvotes: 3

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