CS 106B Hospital Patient Check-in System
========================================

Current patient queue:
{} (empty)
N)ew, F)ront, U)pgrade, P)rocess, B)ulk, C)lear, Q)uit? N
Name? Q
Priority? 8

Current patient queue:
{8:Q} (not empty)
N)ew, F)ront, U)pgrade, P)rocess, B)ulk, C)lear, Q)uit? C

Current patient queue:
{} (empty)
N)ew, F)ront, U)pgrade, P)rocess, B)ulk, C)lear, Q)uit? C

Current patient queue:
{} (empty)
N)ew, F)ront, U)pgrade, P)rocess, B)ulk, C)lear, Q)uit? C

Current patient queue:
{} (empty)
N)ew, F)ront, U)pgrade, P)rocess, B)ulk, C)lear, Q)uit? P

***
*** STANFORD C++ LIBRARY 
*** A string exception occurred during program execution: 
*** There is no top. I must abort. I never learned how to love...
***
*** Stack trace (line numbers are approximate):
*** 0x10fd33cf3     VectorPatientQueue::processPatient()
*** 0x10fd3053b     test(PatientQueue&)
*** 0x10fd2fa33     main()
***