How to make a struct maker like CGRectMake (iphone)

Question

i have a struct HLRange with two CGFloat's

struct HOLRange
{
CGFloat min;
CGFloat max;
};
typedef struct HOLRange HOLRange;

but how do i make a function like HLRangeMake(1,2); .. like CGRectMake?

--EDIT--

my header file

#import <Foundation/Foundation.h>

struct HOLRange
{
    CGFloat min;
    CGFloat max;
};
typedef struct HOLRange HOLRange;

HOLRange HOLRangeMake(CGFloat min, CGFloat max) {
    HOLRange range;
    range.min = min;
    range.max = max;
    return range;
 }

@interface Structs : NSObject {

}

@end


error message: ld: duplicate symbol _HOLRangeMake in             /Users/Documents/projects/iphone/test/catalog/base1/build/base1.build/Debug-iphoneos/base1.build/Objects-normal/armv6/base1AppDelegate.o and /Users/Documents/projects/iphone/test/catalog/base1/build/base1.build/Debug-iphoneos/base1.build/Objects-normal/armv6/main.o

Answer 1

HOLRange HLRangeMake(CGFloat min, CGFloat max) {
    HOLRange range;
    range.min = min;
    range.max = max;
    return range;
}

Answer 2

You can see CGRectMake source in CGGeometry.h so you can do the same:

CG_INLINE CGRect
CGRectMake(CGFloat x, CGFloat y, CGFloat width, CGFloat height)
{
  CGRect rect;
  rect.origin.x = x; rect.origin.y = y;
  rect.size.width = width; rect.size.height = height;
  return rect;
}

Edit: You must either define your function as inline or move its implementation to .m file. You're getting linker errors as you function becomes defined in every compile unit that imports HoleRange.h (?) header.