Singular Manual: killall

| #### D.2.3.10 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
    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

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