GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
#if !defined(_ZZ_H) && !defined(_ZZ_CEN_FUN_P_H)1#define _ZZ_CEN_FUN_P_H23#include "typedef.h"4#include "matrix.h"5#include "ZZ_P.h"67extern void ZZ_free_node _ZZ_P_PROTO_( (ZZ_data_t * data, ZZ_node_t * n) );8extern void ZZ_make_endo _ZZ_P_PROTO_( (ZZ_data_t * data) );9extern void ZZ_test_konst _ZZ_P_PROTO_( (ZZ_data_t * data) );10extern void ZZ_get_data _ZZ_P_PROTO_( (bravais_TYP *group,11matrix_TYP *gram,12int *divisors,13ZZ_data_t *data,14ZZ_tree_t *tree,15int *projections,16int konst_flag) );17extern matrix_TYP *ZZ_fget_data _ZZ_P_PROTO_( (ZZ_data_t * data,18ZZ_tree_t * tree,19char *file_name) );20extern void ZZ_free_data _ZZ_P_PROTO_( (ZZ_data_t * data) );21extern void ZZ_put_data _ZZ_P_PROTO_( (bravais_TYP *, ZZ_data_t * data,22ZZ_tree_t * tree) );23extern void ZZ_fput_data _ZZ_P_PROTO_( (ZZ_data_t * data, ZZ_tree_t * tree,24int ABBRUCH) );25extern matrix_TYP *ZZ_p_vsolve _ZZ_P_PROTO_( (int *anz, matrix_TYP ** L_mat,26matrix_TYP ** R_mat) );27extern ZZ_node_t *ZZ_center _ZZ_P_PROTO_( (ZZ_data_t * data,28ZZ_node_t * father,29int ii, int jj) );30extern int ZZ_epimorphs _ZZ_P_PROTO_( (ZZ_data_t * data, int ii, int jj) );31extern boolean ZZ_successor _ZZ_P_PROTO_( (ZZ_data_t * data,32ZZ_node_t ** act) );33extern int ZZ_ins_node _ZZ_P_PROTO_( (matrix_TYP * Gram,34ZZ_data_t * data, ZZ_tree_t * tree,35ZZ_node_t * father, ZZ_node_t * new,36int ii, int jj,37QtoZ_TYP *inzidenz,38int *nr,39int *NEU,40int *flagge,41int *g,42ZZ_node_t **nnn) );43extern void ZZ_pick_epi _ZZ_P_PROTO_( (ZZ_data_t * data, int number,44int ii, int jj) );4546#endif474849