How to initialize chrono in class?

Somehow I can't initialize variables start, finish, difference.
How is it right to do?

using namespace chrono;

class Sort {
 time_point<float> start;
 time_point<float> finish;
 duration<float> difference;

 void startTime() {
 this->start = high_resolution_clock::now();

 void endTime() {
 this->finish = high_resolution_clock::now();
 this->difference = this->finish - this->start;
March 23rd 20 at 19:14
1 answer
March 23rd 20 at 19:16
You are a strange template time_point option to ask. See the example here:

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