suppose that I have a pointer called P with float type which is points to some values. I want to creat another pointer called Ptr to go through where the P is pointing to and return the last element. How Can I do that?
this is what I tried until now...
float *p;
float *ptr;
for(int i=0; i< sizeof p; i++){
ptr++;
return &ptr;
}
is that correct? sorry that my question is basic.
A pointer-to-pointer-to-float is declared and initialized as such:
float** ptr = &p;
Maybe what you try to do is this:
size_t sizeArr = N;
float *p = new float[sizeArr];
float **ptr = &p;
for(int i=0; i< sizeArr-1; i++){
(*ptr)++;
}
return (**ptr)
...
delete[] p; //careful with this one, since there is another pointer to the same memory
where sizeArr is the length of the array to which p is pointing
UPDATE
Do not use malloc in C++ unless it is really necessary (as suggested in comments)
malloc in C++ is just poor form.