Re: another clogger problem

[Marc Hernandez <marc@ias.jb.com>]

On Fri, 6 Oct 2000, KingFish wrote:

>   char *CLogger::GetLogFileName() {
> 
>         if(m_LogFileOpen)
>                 return m_LogFileName;
>         else
>                 return "";
> 
>   }

>   char *filename = Logger.GetLogFileName;

	This is trying to assign a pointer to char(s) to the method
address Logger::GetLogFileName.  Presumably you want to call
GetLogFileName thus you need:
	Logger.GetLogFileName();

	Coming from Pascal I made this mistake quite a bit.

>   the compiler stops with following error:
> 
>   "error C2440: 'initializing' : 'char *(__thiscall CLogger::*)(void)'

	Notice the error message is showing that you want to convert a
function (thus the '(' / ')' around the function name) to a char.

>   cannot be converted into 'char *'. There is no context to convert"

>   btw, what is the diffence between someclass.method and
>   someclass->method ???

	'->' calls a function from a pointer, '.' calls a function from an
instance.

AClass *pAClass=new AClass;
AClass aClass;

	pAClass->someFunction();
	
	aClass.someFunction();

	'p->' is equivelent to '(*p).' where 'p' is a pointer.

--
Marc Hernandez

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