将int转换为float

Posted 2021-02-23

method to convert int to float in ObjC

// http://stackoverflow.com/questions/5728998/objective-c-casting-int-to-float
 
// First objective c style
 
int b = 10;
float a = [[NSNumber numberWithInt: b] floatValue]
There will be NSNumber instance and messages numberWithInt, floatValue will be send, right?
 
// Second c style
 
int b = 10;
float a = (float) b;