Here are the data structures with brief descriptions:

C_cmdopt_internal_t
CArgSplitter	Used internally to split arguments
CCArg	Structure used to parse arguments
Ccmdapp_info_t
Ccmdapp_t
Ccmdargs_t
Ccmdopt_t
CGwText_	Mp_allocted text
CHash_
Clibprettyerr_error
Clibprettyerr_pos
Clibprettyerr_printer
Clibprettyerr_str
Cm_vec3
Cm_vec4
CM_Vector_
CMap_
CMemPool_
CMP_Vector
Cpool
CRecycle
CScope_
Cscope_iter
CSymbol_
CSymTable_
Ctask_t
Cthreadpool_t
CVector_