Re: String equality?

[Chris Marrin <chris@...>]

Mark Meijer wrote:
> You could always combine the pointer equality and strcmp() (and/or other 
> methods of equality testing), e.g:
>
> char* myFoo = "foo";
> char* prop = lua_tostring(L, -1);
> if((prop == myFoo) || (strcmp(prop, myFoo) == 0))
> [...]
>
> Obviously if the pointers are equal then you are sure the strings are 
> equal, so there's no harm in using this to your advantage (without 
> relying solely on this) if chances are good that you can prevent the 
> strcmp that way (or any other performance hits that other approaches 
> impose).

But this is guaranteed to fail, isn't it? A Lua originated string is 
never going to have the same pointer as a C-generated string, right?

--
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