#### D.2.3.9 killall

Procedure from library `general.lib` (see general_lib).

Usage:
  killall(); (no parameter)
  killall("type_name");
  killall("not", "type_name");

Return:
  killall(); kills all user-defined variables except loaded procedures, no return value.
  - killall("type_name"); kills all user-defined variables, of type "type_name"
  - killall("not", "type_name"); kills all user-defined variables, except those of type "type_name" and except loaded procedures
  - killall("not", "name_1", "name_2", ...); kills all user-defined variables, except those of name "name_i" and except loaded procedures

Note:
  killall should never be used inside a procedure

Example:

    LIB "general.lib";
    ring rtest; ideal i=x,y,z; string str="hi"; int j = 3;
    export rtest,i,str,j;       //this makes the local variables global
    ==> // ** `rtest` is already global
    ==> // ** `i` is already global
    ==> // ** `str` is already global
    ==> // ** `j` is already global
    listvar();
    ==> // j                              [0]  int 3
    ==> // str                            [0]  string hi
    ==> // rtest                          [0]  *ring
    ==> //      i                              [0]  ideal, 3 generator(s)
    killall("ring");            // kills all rings
    ==> // ** killing the basering for level 0
    listvar();
    ==> // j                              [0]  int 3
    ==> // str                            [0]  string hi
    killall("not", "int");      // kills all variables except int's (and procs)
    listvar();
    ==> // j                              [0]  int 3
    ==> // str                            [0]  string hi
    killall();                  // kills all vars except loaded procs
    listvar();
    ==> // j                              [0]  int 3

User manual for Singular version 4-0-3, 2016, generated by texi2html.