size_t cdecl_explain(char *buf, size_t n, struct cdecl *decl);
size_t cdecl_declare(char *buf, size_t n, struct cdecl *decl);
size_t cdecl_explain(char *buf, size_t n, struct cdecl *decl);
size_t cdecl_declare(char *buf, size_t n, struct cdecl *decl);