variable nested for loops

Question

I\'m trying to figure out how I can use recursion to do n-level nested for loops. For example, if n=3, there would be 3 \'levels\'

for(z=0;z<6;z++){
   fo         


        

Answer 1

Here's an example in plain old C++. First I make a vector of the ranges for each dimension called maxes. if the sum of all indices are 2 then I print did something. In the example I loop z from 0 to 1, y from 0 to 2, x from 0 to 3

You can for sure make this more neat.

Here goes:

#include 
#include 
using namespace std;

int f(){ 
    return 2 ;
}

void inner(int depth,vector & numbers,vector & maxes){
  if (depth>0){
     for(int i=0;i  numbers;
   numbers.resize(3);
   vector  maxes;
   maxes.push_back(4);
   maxes.push_back(3);
   maxes.push_back(2);
   inner(numbers.size(),numbers,maxes);
}

int main(){
   donest();
}

result:

values are 0 0 0 
values are 1 0 0 
values are 2 0 0  did something! 
values are 3 0 0 
values are 0 1 0 
values are 1 1 0  did something! 
values are 2 1 0 
values are 3 1 0 
values are 0 2 0  did something! 
values are 1 2 0 
values are 2 2 0 
values are 3 2 0 
values are 0 0 1 
values are 1 0 1  did something! 
values are 2 0 1 
values are 3 0 1 
values are 0 1 1  did something! 
values are 1 1 1 
values are 2 1 1 
values are 3 1 1 
values are 0 2 1 
values are 1 2 1 
values are 2 2 1 
values are 3 2 1