Path: utzoo!mnetor!tmsoft!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!uunet!microsoft!jimad
From: jimad@microsoft.UUCP (Jim ADCOCK)
Newsgroups: comp.lang.c++
Subject: Re: Initializing an array class member?
Keywords: initializers constructors
Message-ID: <70639@microsoft.UUCP>
Date: 12 Feb 91 22:35:29 GMT
References: <1991Feb4.215231.16157@alias.uucp>
Reply-To: jimad@microsoft.UUCP (Jim ADCOCK)
Organization: Microsoft Corp., Redmond WA
Lines: 35

In article <1991Feb4.215231.16157@alias.uucp> lfung@alias.UUCP (Lisa A. Fung) writes:
|
|What is the correct syntax for initializing an array class member?
|I have tried some combinations, all of which have resulted in syntax
|errors with the MacIntosh MPW C++ compiler.  If you have an answer,
|please e-mail me.  Also, if I happened to miss the answer in some C++ book
|or other, could you include the reference and page number?
|
|Here's my example:
|
|class myClass {
|  public:
|    myClass();  // constructor
|    ~myClass(); // destructor
|  private:
|    Tthing   arrayOfThings[3];  // Tthing's constructor takes an arg...
|};

According to ARM pgs 289-290, your choices are to provide a default
constructor for Tthing, or supply values inside the constructor as follows:

myClass::myClass()
{
	arrayOfThings[0] = 0;
	arrayOfThings[1] = 100;
	arrayOfThings[2] = 200;
}

This approach would seem to imply that the array is to be default 
initialized first, which would imply you must have a default Tthing
constructor.

The ARM goes on to note that there is no syntax for nonstatic const
arrays, which I imply to mean that the above are your only two choices
for nonstatic nonconst member arrays.