Singular Manual: init_debug

| #### D.6.4.5 init_debug Procedure from library `classify.lib` (see classify_lib). Usage: init_debug([level]); level=int Compute: Set the global variable @DeBug to level. The variable @DeBug is used by the function debug_log(level, list of strings) to know when to print the list of strings. init_debug() reports only changes of @DeBug. Note: The procedure init_debug(n); is useful as trace-mode. n may range from 0 to 10, higher values of n give more information. Example:
    LIB "classify.lib";
    init_debug();
    debug_log(1,"no trace information printed");
    init_debug(1);
    ==> Debugging level change from  0  to  1
    debug_log(1,"some trace information");
    ==> some trace information
    init_debug(2);
    ==> Debugging level change from  1  to  2
    debug_log(2,"nice for debugging scripts");
    ==> Debug:(2):  nice for debugging scripts
    init_debug(0);
    ==> Debugging switched off.

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