Why? Invalid type argument of unary *

[progman]

K, I can't wrap my head around why this error keeps popping up. I am writing a conversion program and thanks to some prior help, I am able to start calculating some values, but I've run into a bit of a snag. Examples below:

My defines:

#define ACRE_SQ_CHAIN       10;
#define ACRE_RODS           160;
#define ACRE_SQ_LINKS       10000;
#define ACRE_HECTARE        0.4047;

#define ACRE_SQ_CHAIN       10;
#define ACRE_RODS           160;
#define ACRE_SQ_LINKS       10000;
#define ACRE_HECTARE        0.4047;

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and the calculation routine - this works:

if(to == "Hectare")
        {
            cvrt = temp * ACRE_HECTARE;
            answer.setNum(cvrt);
            leAcreAns->setText(answer);
        }

if(to == "Hectare")
        {
            cvrt = temp * ACRE_HECTARE;
            answer.setNum(cvrt);
            leAcreAns->setText(answer);
        }

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This doesn't work:

if(to == "Rods")
        {
            cvrt = temp / ACRE_SQ_CHAIN * ACRE_RODS;
            answer.setNum(cvrt);
            leAcreAns->setText(answer);
        }

if(to == "Rods")
        {
            cvrt = temp / ACRE_SQ_CHAIN * ACRE_RODS;
            answer.setNum(cvrt);
            leAcreAns->setText(answer);
        }

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This is the section that is throwing the 'unary error'. If I change ACRE_RODS to the actual hard coded value, that is 160, error still occurs. Why is it that in some cases, it figures out I want to multiply the values, but in other cases, it thinks there is a unary * issue....

If you look at the first section where it have temp * ACRE_HECTARE, that works fine, but, if I reverse it, so that it reads, ACRE_HECTARE * temp, it also throws the unary* error? What am I not seeing??

Thanks!

[high_flyer]

remove the ';' from your defines.
what you get is:

cvrt = temp / 10; * 160;;

cvrt = temp / 10; * 160;;

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[Rhayader]

Make a google search for "const instead Define". It is more than a matter of style

[progman]

remove the ';' from your defines.
what you get is:

cvrt = temp / 10; * 160;;

cvrt = temp / 10; * 160;;

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** Smacks head against desk ** Thanks!

[Rhayader]

progman, thanks for the thanks but I think you should thank high_flyer instead