#include "data_structs.h"
struct fun_info_s slater_u_e(struct den_info_s den_info);
struct fun_info_s slater_u_ed(struct den_info_s den_info);
struct fun_info_s no_funct_u(struct den_info_s den_info);
struct fun_info_s VWN5_u_e(struct den_info_s den_info);
struct fun_info_s VWN5_u_ed(struct den_info_s den_info);
struct fun_info_s VWN4_u_e(struct den_info_s den_info);
struct fun_info_s VWN4_u_ed(struct den_info_s den_info);
