Do not use pointers just because we can

[keryell]

On slide 5 of Lecture_06_Data_Parallelism/index.html

void calc(int *in, int *out) {
void calc(int *in, int *out, int id) { 

should at least replaced by

void calc(const int in[], int out[]) {
void calc(const int in[], int out[], int id) { 

to express the intent.

[keryell]

Slide 11 of Lecture_15_Image_Convolution/index.html

const char* inputImageFile = "../Code_Exercises/Images/dogs.png";
const char* outputImageFile = ../Code_Exercises/Images/blurred_dogs.png";

could be replaced by

auto inputImageFile = "../Code_Exercises/Images/dogs.png";
auto outputImageFile = ../Code_Exercises/Images/blurred_dogs.png";

to make Python programmers happy.

[AerialMantis]

Yeah these changes sound reasonable to me.

[rodburns]

@keryell are you able to make a PR for this change?

[keryell]

Yes I can do it since my CppCon talk is over. :-)