将多个值返回给多个变量

Question

是否可以从函数返回多个值并将它们分配给多个变量？

可以说我有其产生3个数字

int first, second , third 
int generator (a,b,c){ 
int one , two ,three 
//code that generates numbers and assign them into one, two three 
} 

代码，我想INT一个的值先分配到变量，二至第二和三个第三。是这样的可能使用C吗？

Answer 1

你可以通过变量的地址，要分配一个值：

int generator(int* first, int* second, int* third) { 
    int one, two, three; 

    /* Initialize local variables here. */ 

    *first = one; 
    *second = two; 
    *third = three; 

    return something; 
} 

int main(void) { 
    int first, second, third; 
    generator(&first, &second, &third); 
} 

另一种方法是创建一个struct和返回struct：

struct data { 
    int one, two, three; 
}; 

，并将其返回：

struct data generator() { 
    int one, two, three; 

    /* Initialize local variables here. */ 

    return (struct data) { one, two, three }; 
} 

或通过函数参数填充它[R ，类似于第一种方法：

void generator(struct data* d) { 
    int one, two, three; 

    /* Fill one, two, and three here. */ 

    d->one = one; 
    d->two = two; 
    d->three = three; 
} 

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_{^{1作为意见建议@CraigEstey这个答案}}