LinuxCNC for automation

try to use :
std::string, double, int, bool, char, etc.

Things that are handy to use, for example :
abs or -abs
if(101%2==0){ .. } //to compare if value 101 is even or uneven.

Things to know are container types like vector :
std::vector<double>
I stay at vectors. I do not use any of the qt container types, like stringlist, linked list etc.

setting up structures and how to use them in functions :
struct POINT {
double x,y,z;
}

standard function :
void test(){
//do things here.
}

try to understand a function to return the point value.
POINT test(){
POINT p;
p.x=1;
return p;
}

read in the point done by above function:
void read_in(){
POINT point = test();
}

pass in values :
void test (double x, double y, double z, /*or simpler x,y,z in one point :*/ POINT p){
//here you see we pass in x,y,z or we pass in a point p.x, p.y, p.z wich is easyer and less work.
}

you can pass in iterators (kind of pointers)
void test (std::vector<POINT>::iterator it){
//how to use this you will learn by practicing and look at iterator code samples.
}