Shall a C++ class function end with a }; or only a }?

A basic questions about开发者_C百科 C++ syntax.

Shall a c++ function end with a ; or does it not matter?

Or what is the difference between those two examples?

With a ending ;

void Test :: print()
{
  ...
};

Without ;

void Test :: print()
{
  ...
}

I have seen C++ code both with and without, but I don't get the difference.

/Thanks

Update:

In this case the ; should be avoided since it is not doing anything useful and may even become a problem in the future.

Outside of a class body (where a function definition may optionally be followed by a single ;), a function definition is terminated by the end of a compound-statement - that is the closing }. At namespace scope, the next token after the closing brace of a function-definition must form part of the next declaration.

In C++03, there is no such thing as an empty-declaration so placing a ; is illegal, although accepted by many implementations. (Although the syntax of a C++03 simple-declaration appears to allow a missing decl-specifier-seq and a missing init-declarator-list, leaving just a ;, there is a semantic rule forbidding both optional parts to be left out expressed in 7 [dcl.dcl] / 3 of the standard.)

In a simple-declaration, the optional init-declarator-list can be omitted only when declaring a class (clause 9) or enumeration (7.2), that is, when the decl-specifier-seq contains either a class-specifier, an elaborated-type-specifier with a class-key (9.1), or an enum-specifier.

C++0x introduces an empty-declaration (which is a declaration with no effect), so you can have as many rogue ; at namespace scope as you like although there is no good reason to do so.

You are indeed adding empty declarations to your file when you put in spurious semicolons. It does not matter much, as @Space_C0wb0y pointed out.

BTW, the heading does not fit your question.

No. The sign ; should not be the end of the function. Perhaps you've seen sign at the end declaration class