How to get values to function from 2 different function

Projects Programming
1

Hello,
I have a function that need to get 6 values, the problem is that this values come from 2 different function.
The problem i struggle that from this 2 function from each i get 3 values,
So my question can i send 3+3 values from this function to the function that get 6 values and if i can how can i do it. Thank you all.

2

does this help?

void function1(int& a, int& b, int &c)
{
  a = 2;
  b = 3;
  c = 4;
}

void function2(int& a, int& b, int &c)
{
  a = 20;
  b = 30;
  c = 40;
}

void function3(int& a, int& b, int &c, int& d, int& e, int &f)
{
  function1(a, b, c);
  function2(d, e, f);
}


void setup()
{
  int p1 = 0, p2 = 0, p3 = 0, p4 = 0, p5 = 0, p6 = 0;

  Serial.begin(115200);
  function3(p1, p2, p3, p4, p5, p6);
  Serial.print("p1 = "); Serial.println(p1);
  Serial.print("p2 = "); Serial.println(p2);
  Serial.print("p3 = "); Serial.println(p3);
  Serial.print("p4 = "); Serial.println(p4);
  Serial.print("p5 = "); Serial.println(p5);
  Serial.print("p6 = "); Serial.println(p6);
}

void loop() {}

the & in the functions parameters means that we pass this parameter by reference, so modifying that parameter in the function actually modifies the variable that was used by the caller.

3

Thank you for reply so quickly. I will try this.

4

If you know more ways please share, i will always be glad to learn more.

5

you can use arrays, pointers etc... you need to explain a bit more your need, it's unclear from your first post

6

and if i have something like this:
void function_1(int& a, int& b, int &c)
{
a = 2;
b = 3;
c = 4;

d=a+b;
e=b+c;
f=a+c;
}

void function_2(int& g, int& h, int &i)
{
g = 20;
h = 30;
i = 40;

j=g+h;
k=h+i;
l=g+i;

}
void function_3(int& d, int& e, int& f,int& j, int& k, int& l){

}
its can be the same to send d,e,f,j,k,l from function 1 and 2 to 3?

7

sorry if it's a stupid question - but do you understand the difference between local and global variables? (ie variable scope) or passing arguments by value or by reference to a function?

8

Not really i am learning and try stuff.

9

OK - so suggest you start there, reading a C or C++ tutorial on variables and functions. Then it will all become much clearer