Where is wiring_digital.c in my computer

Using Arduino Programming Questions
1

For function pinMode, I press the righr click and choose "Go to definition" , and find the function in wiring_digital.c that was open in IDE. but I can not find whener wriring_digital.c is located in my computer.I use arduin version 2.33, it does not need to install.

2

There will be a wiring_digital.c file for each board type installed. Here is a screenshot of where mine are located

image

3

@UKHeliBob Thanks!