https://manpages.ubuntu.com/manpages/xenial/man3/Tcl_GetLongFromObj.3tcl.html
Ubuntu Manpage: Tcl_NewIntObj, Tcl_NewLongObj, Tcl_NewWideIntObj, Tcl_SetIntObj,
ubuntumanpagetcl
https://manpages.ubuntu.com/manpages/xenial/man3/Tcl_SetLongObj.3tcl.html
Ubuntu Manpage: Tcl_NewIntObj, Tcl_NewLongObj, Tcl_NewWideIntObj, Tcl_SetIntObj,
ubuntumanpagetcl
https://manpages.ubuntu.com/manpages/xenial/man3/Tcl_SetWideIntObj.3tcl.html
Ubuntu Manpage: Tcl_NewIntObj, Tcl_NewLongObj, Tcl_NewWideIntObj, Tcl_SetIntObj,
ubuntumanpagetcl