DEC_KEYING_IN_C
#if (FUNCS_IN_C & DEC_KEYING_IN_C)
# define DFUNCS_IN_C DEC_KEYING_IN_C
# define DFUNCS_IN_C ( DECRYPTION_IN_C | DEC_KEYING_IN_C )
# if ((FUNCS_IN_C & ENC_KEYING_IN_C) || (FUNCS_IN_C & DEC_KEYING_IN_C))
# if (FUNCS_IN_C & DEC_KEYING_IN_C)