usleep() has been removed in POSIX 2008, C code that includes rlutil.h will not compile if _POSIX_C_SOURCE is set to 200809L or greater.
nanosleep() from time.h is a suggested alternative and compiles successfully whether the POSIX standard is set or not.
Also, a default case has been missing in getkey() in the switch case for processing ASCII escapes.
Not having a default case also causes C code to not compile when universally appropriate warning flags are turned on with gcc.
I set the default case to return -1, but there might be a better alternative (if maybe a #define to -1 somewhere for code readability).
usleep()has been removed in POSIX 2008, C code that includesrlutil.hwill not compile if_POSIX_C_SOURCEis set to200809Lor greater.nanosleep()fromtime.his a suggested alternative and compiles successfully whether the POSIX standard is set or not.Also, a default case has been missing in
getkey()in the switch case for processing ASCII escapes. Not having a default case also causes C code to not compile when universally appropriate warning flags are turned on with gcc.I set the default case to return -1, but there might be a better alternative (if maybe a #define to -1 somewhere for code readability).