Objective-C：將浮點值調整爲0-1的方法的名稱

Question

我創建了以下方法以安全地使用率。
（有時速率可能變得像INFINITY，NAN值無效，或超出0-1）

-(double)XXXX:(double)rate 
    if (rate >= 1) { 
     return 1; 
    } else if (rate <= 0) { 
     return 0; 
    } else if (0 <= rate && rate <= 1) { 
     return rate; 
    } else { 
     return 0; 
    } 
} 

我應該怎麼命名這個方法？

編輯：
我用率來顯示的時間與UISlider，UIProgress，或者只是NString（XX％）進展。該方法的

用法是：

rate = [objectOrClass XXXX: currentTime/totalTime]; 
rate = [objectOrClass XXXX:(currentTime + additionalTime)/totalTime]; 

我還用它來從速度計算currentTime的：

currentTime = [objectOrClass XXXX:rate] * totalTime; 

Answer 1

-(double) adjustRate:(double)rate; 

Answer 2

static inline float RateAligned(float rate) { 
    return MAX(.0f, MIN(1.0f, rate)); 
} 

Answer 3

When totalTime is zero you will get INFINITY. 

When totalTime and currentTime both are zeros you will get NAN. 

When (currentTime + additionalTime) and currentTime both are zeros you will get NAN. 

我認爲這將是有益的您。