HelenOS sources

cu_ybyte           61 uspace/lib/c/generic/capa.c 	[cu_ybyte] = "YB"
cu_ybyte           66 uspace/lib/c/include/capa.h #define CU_LIMIT (cu_ybyte + 1)
cu_ybyte           64 uspace/lib/fdisk/include/types/fdisk.h #define CU_LIMIT (cu_ybyte + 1)
cu_ybyte           66 uspace/lib/posix/include/libc/capa.h #define CU_LIMIT (cu_ybyte + 1)
HelenOS homepage, sources at GitHub