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如何只按目标表示愤怒价值?
原标题:How to get only sign in integer value by objective c?

我不禁要想出一种只能以愤怒价值表示的方式。

如何获得惯性价值标识?

请您提供帮助。

我希望的是

int value =  100;  ====>  result :  1
int value = -100;  ====>  result : -1
int value =    0;  ====>  result :  0
最佳回答

Trivial。

int signum(int n) { return (n < 0) ? -1 : (n > 0) ? +1 : 0; }
问题回答

缩略语 h

(int)signOfInteger:(int)integer {

        return (integer > 0) - (integer < 0);

}
- (int)signOfInteger:(int)integer {
    if (integer != 0) {
        integer = (integer < 0) ? -1 : +1;
    }
    return integer;
}

signOfIntegerOrFloat = (x-fabs (x)) > 0.0 ? 1 : ((x-fabs(x)) < 0.0 ? -1:0

float = fabsf ( float ) - for float

双重=(两倍)

长期双倍/双倍





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