In Listing 10-38, you comment out speed_mps initialization rather than collision_threshold_s initialization, so instead of:
Intentionally commenting out the collision_threshold_s member initializer...
the caption should read:
Intentionally commenting out the speed_mps member initializer...
In Listing 10-38, you comment out
speed_mpsinitialization rather thancollision_threshold_sinitialization, so instead of:the caption should read: