From: "Anthony Borla" <ajborla AT bigpond DOT com>
Subject: Re: Help : warning invalid initializer
Newsgroups: comp.os.msdos.djgpp,comp.lang.c++
References: <374898C3 DOT AD7EB7FC AT netvigator DOT com>
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Date: Mon, 24 May 1999 00:57:15 GMT
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To: djgpp AT delorie DOT com
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NG Chi Fai <cfng1 AT netvigator DOT com> wrote in article
<374898C3 DOT AD7EB7FC AT netvigator DOT com>...
> Hello all,
> 
> I encountered the below problem with my code listed below. But I have no
> idea of what does it mean by "invalid initializer"
> 
> egcs1.1.2 (DJGPP) warning message:
> IOTable.hpp:11: ANSI C++ forbids in-class initialization of non-const
> static member `IOTableIdentifiers'
> IOTable.hpp:11: invalid initializer
> 
> -- source code  IOTable.hpp --
> #ifndef __CF_CLASSIOTABLE__
> #define __CF_CLASSIOTABLE__
> // ... some #include here 
> 
> class IOTable
> {
> 	private:
> 	static const char*
>
IOTableIdentifiers[]={"A","B","C","D","E","F,"G","H","I","J","K","L","M","N"
,"O","P",NULL};
> // line 11
> 	static const char* const IdentifierSuffix="_S";
> // ... lines follows
> };
> 
> Thanks in advance.
> 
> NG Chi Fai
> 

Hi,
 
The use of the 'static' keyword in a class data member declaration only
makes it a class member; it does not allocate storage to it. Therefore, you
cannot initialise such a member within the class definition. You must:
* Declare a seperate variable to provide the required storage
* Initialise it at declaration time

The example below shows how:   

// Class Definition
class IOTable
{
private:
  static const char* IOTableIdentifiers[];
// line 11
  static const char* const IdentifierSuffix[];
// ... lines follows
};

// Initialise static
const char* IOTable::IOTableIdentifiers[] =
{"A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P",0};
const char* const IOTable::IdentifierSuffix[] = {"_","S",0};

int main(void)
{
  IOTable iotbl;
  return 0;
}

By the way, you are missing a double quote character after the 'F' in:
 >
IOTableIdentifiers[]={"A","B","C","D","E","F,"G","H","I","J","K","L","M","N"
,"O","P",NULL};
                                                                 ^
                                                                 |