-XBT_PUBLIC(void) xbt_cfg_setdefault_int(xbt_cfg_t cfg, const char *name, int val);
-XBT_PUBLIC(void) xbt_cfg_setdefault_double(xbt_cfg_t cfg, const char *name, double val);
-XBT_PUBLIC(void) xbt_cfg_setdefault_string(xbt_cfg_t cfg, const char *name, const char *val);
-XBT_PUBLIC(void) xbt_cfg_setdefault_boolean(xbt_cfg_t cfg, const char *name, const char *val);
-
-/** @brief Remove the provided value from the cell #name in #cfg. */
-XBT_PUBLIC(void) xbt_cfg_rm_int(xbt_cfg_t cfg, const char *name, int val);
-XBT_PUBLIC(void) xbt_cfg_rm_double(xbt_cfg_t cfg, const char *name, double val);
-XBT_PUBLIC(void) xbt_cfg_rm_string(xbt_cfg_t cfg, const char *name, const char *val);
-XBT_PUBLIC(void) xbt_cfg_rm_boolean(xbt_cfg_t cfg, const char *name, int val);
-
-/** @brief Remove the value at position \e pos from the config \e cfg */
-XBT_PUBLIC(void) xbt_cfg_rm_at(xbt_cfg_t cfg, const char *name, int pos);
-
-/** @brief rm every values */
-XBT_PUBLIC(void) xbt_cfg_empty(xbt_cfg_t cfg, const char *name);
+XBT_ATTRIB_DEPRECATED_v323("Please use simgrid::config::set_default<int>") XBT_PUBLIC
+ void xbt_cfg_setdefault_int(const char* name, int val);
+XBT_ATTRIB_DEPRECATED_v323("Please use simgrid::config::set_default<double>") XBT_PUBLIC
+ void xbt_cfg_setdefault_double(const char* name, double val);
+XBT_ATTRIB_DEPRECATED_v323("Please use simgrid::config::set_default<bool>") XBT_PUBLIC
+ void xbt_cfg_setdefault_boolean(const char* name, const char* val);
+XBT_ATTRIB_DEPRECATED_v323("Please use simgrid::config::set_default<std::string>") XBT_PUBLIC
+ void xbt_cfg_setdefault_string(const char* name, const char* val);