Flawfinder version 2.0.10, (C) 2001-2019 David A. Wheeler.
Number of rules (primarily dangerous function names) in C/C++ ruleset: 223
Examining data/icecream-sundae-1.0.0/src/draw.cpp
Examining data/icecream-sundae-1.0.0/src/draw.hpp
Examining data/icecream-sundae-1.0.0/src/main.cpp
Examining data/icecream-sundae-1.0.0/src/main.hpp
Examining data/icecream-sundae-1.0.0/src/scheduler.cpp
Examining data/icecream-sundae-1.0.0/src/scheduler.hpp
Examining data/icecream-sundae-1.0.0/src/simulator.cpp
Examining data/icecream-sundae-1.0.0/src/simulator.hpp

FINAL RESULTS:

data/icecream-sundae-1.0.0/src/scheduler.cpp:89:13:  [1] (obsolete) usleep:
  This C routine is considered obsolete (as opposed to the shell command by
  the same name). The interaction of this function with SIGALRM and other
  timer functions such as sleep(), alarm(), setitimer(), and nanosleep() is
  unspecified (CWE-676). Use nanosleep(2) or setitimer(2) instead.
            usleep(500);

ANALYSIS SUMMARY:

Hits = 1
Lines analyzed = 1940 in approximately 0.05 seconds (36972 lines/second)
Physical Source Lines of Code (SLOC) = 1431
Hits@level = [0]   0 [1]   1 [2]   0 [3]   0 [4]   0 [5]   0
Hits@level+ = [0+]   1 [1+]   1 [2+]   0 [3+]   0 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 0.698812 [1+] 0.698812 [2+]   0 [3+]   0 [4+]   0 [5+]   0
Dot directories skipped = 1 (--followdotdir overrides)
Minimum risk level = 1
Not every hit is necessarily a security vulnerability.
There may be other security vulnerabilities; review your code!
See 'Secure Programming HOWTO'
(https://dwheeler.com/secure-programs) for more information.