Here is a list of all struct and union fields with links to the structures/unions they belong to:

### - c -

- c : wgetch_arg , DateData , s_voidp , s_float , s_double , s_short , OnigToken , CHAR64LONG16 , s_int , s_long
- cached_const : iseq_compile_data
- call : OnigToken , _Node
- call_addr : EncloseNode
- call_frame : _OnigStackType
- callback : each_obj_args
- called_id : rb_method_entry_struct
- calltype : cfunc_data
- canonname : rb_addrinfo_t
- capa : FBufferStruct , nkf_buf_t , vtable , _syck_node , rb_io_buffer_t , RString , RArray , io_internal_read_struct , io_internal_write_struct , StrNode
- capture_history : re_pattern_buffer , ScanEnv
- car : ConsAltNode
- case_fold_flag : re_pattern_buffer , OnigCompileInfo , OptEnv , ScanEnv
- catch_table : rb_iseq_struct
- catch_table_ary : iseq_compile_data
- catch_table_size : rb_iseq_struct
- catch_type : iseq_catch_table_entry
- CATCH_TYPE_BREAK : iseq_catch_table_entry
- CATCH_TYPE_ENSURE : iseq_catch_table_entry
- CATCH_TYPE_NEXT : iseq_catch_table_entry
- CATCH_TYPE_REDO : iseq_catch_table_entry
- CATCH_TYPE_RESCUE : iseq_catch_table_entry
- CATCH_TYPE_RETRY : iseq_catch_table_entry
- categorize : chunk_arg
- cbuf : gzfile , rb_io_t
- cc : IApplyCaseFoldArg
- cclass : _Node
- cd : iconv_env_t
- cdr : ConsAltNode
- cfp : rb_thread_struct
- cfunc : RNode , rb_method_definition_struct
- chain : re_pattern_buffer
- char_len : EncloseNode , AnchorNode
- char_offset : rmatch
- char_offset_num_allocated : rmatch
- char_offset_updated : rmatch
- char_pos : pair_t
- check_root : evloop_params
- check_var : evloop_params
- child_pid : pty_info
- childs : OnigCaptureTreeNodeStruct
- cif : fiddle_closure
- close_dst : copy_stream_struct
- close_src : copy_stream_struct
- cmd : io_cntl_arg , trap_arg , rb_vm_struct
- cmdinfo : invoke_info
- cnt : RNode
- code : CodePointList3 , CodePointList2 , fiddle_closure , OnigToken , OnigCaseFoldCodeItem
- code_len : OnigCaseFoldCodeItem
- code_to_mbc : OnigEncodingTypeST
- code_to_mbclen : OnigEncodingTypeST
- CodePage : myCPINFOEX
- CodePageName : myCPINFOEX
- column : token_info
- comment : gzfile
- compare : st_hash_type
- compat_tbl : dump_arg , load_arg
- compile_data : rb_iseq_struct
- complex : RVALUE
- cond : rb_thread_cond_struct , rb_global_vm_lock_struct , rb_mutex_struct
- cond_waiting : rb_mutex_struct
- conflict : rb_deprecated_classext_struct
- cons : _Node
- const_tbl : rb_classext_struct
- cont : rb_fiber_struct , iseq_catch_table_entry
- Control : WSAMSG
- conv_tree_start : rb_transcoder
- copy_length : copy_stream_struct
- count : SHA1_CTX , rb_objspace , md5_state_s , _OnigStackType , StringIO
- counter : global_variable
- coverage : parser_params , rb_iseq_struct
- coverages : rb_vm_struct
- crc : gzfile
- create_additions : JSON_ParserStruct
- create_id : JSON_ParserStruct
- cref_stack : rb_iseq_struct
- ctx_size : rb_digest_metadata_t
- ctype : _Node , OnigToken , CtypeNode , PosixBracketEntryType , uniname2ctype_struct
- curbit : DBM
- curr : DIR , strscanner
- current_block : iseq_compile_data
- current_file : argf
- current_nesting : JSON_ParserStruct
- cursor : _syck_parser
- curstate : cparse_params
- cwday : tmx_funcs
- cweek : tmx_funcs
- cwyear : tmx_funcs