c++ - Suitable type of function when more than one integer is returned -


how can have function in c++ array returning type ?

for example consider simple function calculate divisors of number, in every step of loop i has new value .

int divisordeterminer(int num)  {     int = 0 ;      (i; < num; i++)      {         if (num % == 0)          {             return i;         }     } } 

i want have divisors array , don't know how ?

std::array thing, if know how many items contain @ compile time. in case number of items vary, std::vector work. there various containers in standard library; it's worth reading them, std::vector go-to data type.

std::vector<int> divisordeterminer(int num)  {     std::vector<int> divisors;     (int i=1; < num; i++) //<--- start @ 1, not 0     {         if (num % == 0)          {             divisors.push_back(i);         }     }     return divisors; } 

edit: original code checks i=0, should 0 count divisor of anything? not. strays undefined behaviour (ub), discussed in this question, i've started loop 1.


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