Wrapper for CGFloat Error

Question

In my CGFloat wrapper Im getting an error Returning CGFloat (aka Double) from a function result type CGfloat aka double take the address with &

+(CGFloat*)pointData;

//

+(CGFloat *)pointData{


    NSInteger savedInt = [[NSUserDefaults standardUserDefaults] integerForKey:@"savedPointForText"];
    CGFloat textPoint = (CGFloat)savedInt;

    if(textPoint <1) {

        textPoint = 18.0;
    }


    return textPoint;
}

If I do return &textPoint; I get a warning that address of stack memory with local variable "textpoint" returned

`+(CGFloat)pointData;` without the "*"? – Larme Jul 31 '15 at 12:56 — Larme, Jul 31 '15 at 12:56

Glorfindel · Accepted Answer · 2015-07-31T13:05:01.320

1

In this case, you can just return the CGFloat itself, if you change the signature to:

+ (CGFloat)pointData {

You need CGFloat * in case you don't want to return the variable (perhaps because you actually need to manipulate more than one variable):

+ (void)changePointData:(CGFloat *)pointData {
    NSInteger savedInt = [[NSUserDefaults standardUserDefaults] integerForKey:@"savedPointForText"];
    *pointData = (CGFloat)savedInt;

    if (*pointData < 1) {    
        *pointData = 18.0;
    }
}

edited Jul 31 '15 at 13:05

answered Jul 31 '15 at 12:56

Glorfindel

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Sorry - forgot to change the parameter name. It is a really useful pattern to know. – Glorfindel Jul 31 '15 at 13:05

score 1 · Answer 2 · answered Jul 31 '15 at 12:57

1

You can try

+(CGFloat)pointData{

    //Your code
}

Hope it helps.

answered Jul 31 '15 at 12:57

Pradumna Patil

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Wrapper for CGFloat Error

2 Answers2