iphone - 如何制作像CGRectMake(iphone)这样的结构制造商

我有一个带两个cgfloat的struct hlrange

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

但是，我如何制作一个像hlrangemake（1，2）这样的函数……像cGrectMake？
--编辑--
我的头文件

#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

最佳答案

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