Femtoseconds delay in c++

kaveh rahimi 61

Hi , I am searching for a delay function that its duration is one femtosecond. How can I write my code?
Please explain completely by example.
Thanks

Barry Schwarz 3,326 Reputation points

2021-10-09T17:09:01.807+00:00

You have a personal device with a timer that has femtosecond resolution? Would the instruction to initiate the delay terminate before the femtosecond had elapsed?
kaveh rahimi 61 Reputation points

2021-10-09T18:08:16.763+00:00

No , my delay function I said is a part of my code. That's not a hardware device.
Barry Schwarz 3,326 Reputation points

2021-10-09T23:29:03.76+00:00

The function may be part of your code but it has to run on your hardware and operating system (the environment). Most delay functions take advantage of the the environment's ability to signal when the desired interval has elapsed. Even if you chose to create a spin loop and test the system clock each iteration, you would still need the value you are checking to have femtosecond or better resolution .

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