Re: #define works, const short does not for Ctype array in class
Re: #define works, const short does not for Ctype array in class
- Subject: Re: #define works, const short does not for Ctype array in class
- From: Robert Kuilman <email@hidden>
- Date: Mon, 14 Jun 2004 17:37:27 +0200
I got the same problem when trying do declare constant integers, of
variables of any other type.
I just #def-ed them. It does the trick, and there should not be a
performance loss in it for you..
in that respect, const short is nearly the same as a #define, i think
GCC will subtitute both cases for the value
at compile time anyhow.
Robert K.
-----------------------------{ Official Cocoa Newbie!
}-----------------------------
web:
http://halfduplex.net/
email: email@hidden
On Jun 14, 2004, at 4:23 PM, George Woodrow III wrote:
I have the following code:
const short MaxNEvalValues = 6; // array size for evalValues[]
//#define MaxNEvalValues 6
@interface STQualityStandards : NSObject
{
double tePct; // >= 0.0
double teAbs; // >= 0.0
double sigmaMult; // >= 1.65, default 2.4
short nEvalValues; // 1-6
float evalVals[MaxNEvalValues]; // evalVals[0] must have a value
double maxBiasFac; // default 1, range [0.5, 1.0]
double worstGradeWeight; // [0.0, 1.0], default = 0.3
BOOL useSpecificPatBiasLimitsQ; // normally NO
double patMedLimitPct; // < tePct
double patMedLimitAbs; // < teAbs
}
If I compile this, I get an error:
error: variable-size type declared outside of any function.
If I use the #define, everything works fine, as does hard coding the 6
in the array.
For performance reasons, I need to use a c style array, not an
MSMutableArray.
Using the const works in c/c++.
What do I have to do to make it work in Cocoa?
Thanks
George V. Woodrow III
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.
Robert K.
web:
http://halfduplex.net/
email: email@hidden
------------------------------------------------------------------------
---------------------
"Robert's Law: Whenever you have the time to write code, you lack the
inspiration. The moment's you are too busy to code, you come up with
idea's constantly."
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.