- Catmandu::Validator::Simple
- Catmandu::Wikidata
- catopen
- cbc_crypt
- CBDSQR
- CBOR::XS
- cbreak
- cBroadcast
- cbrt
- cbrt
- cbrtf
- cbrtl
- ccos
- ccosf
- ccosh
- ccoshf
- ccoshl
- ccosl
- cCreate
- cc_string
- cd
- cdawson
- cdb
- cdb_datalen
- cdb_datapos
- CDB_File
- cdb_find
- cdb_firstkey
- cdb_free
- cdb_init
- cdb_keylen
- cdb_keypos
- cdb_nextkey
- cdb_read
- cdb_successor
- CDDB
- CDDB.pm
- CDDB::File
- cDestroy
- cdk
- cdk_binding
- cdk_display
- cdk_position
- cdk_process
- cdk_traverse
- CDS/ISIS manual appendix F
- Cdt
- ceil
- ceil
- ceilf
- ceill
- CenterCmd
- centre_dialog
- cerf
- cerfc
- cerfcx
- cerfi
- cexp
- cexp2
- cexp2f
- cexp2l
- cexpf
- cexpl
- cfdp
- cfg_opt_t
- cfg_t
- cfg_value_t
- Cflow::find
- cfree
- CFUX
MAN (3)
Library functions, covering in particular the C standard library