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Line 34: * In the last case, [[literal string\|string]] concatenation must be invoked. Thus, the name <code>+</code> actually refers to three or four completely different functions. This is an example of ''overloading''. (Note the ambiguity in the string types used in the last case. Consider <code>"123" + "456"</code> in which the programmer might ''naturally'' assume addition rather than concatenation. They may expect "<code>579"</code> instead of <code>"123456"</code>. Overloading can therefore provide different meaning, or semantics, for an operation, as well as differing implementations.) ==References==

Ad hoc polymorphism: Difference between revisions