Section 2.19 - COP 2220C: C Programming | zyBooks

Tags

Top Highlights

• The integers generated by rand() are known as pseudo-random

• . For the first call to rand(), no previous random integer exists, so the function uses a built-in integer known as the seed

• A programmer can change the seed using the function srand(), as in srand(2) or srand(99

• One way to get a different seed for each program run is to use the current time as the seed.

• he function time() returns the number of seconds since Jan 1, 1970

• #include <time.h>

• srand((int)time(0));

• The sequence will differ than if srand() was not called (which is the same as srand(1)), but that sequence will be the same for every program run.