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Scilab Help >> Scilab > Debugging > debug

debug

Debugging environment in Scilab

Syntax

debug()

Description

Use to debug Scilab script. After call of debug(), you enter in debug mode. This mode allows you to manage breakpoints, launch execution with stop en error, execute script step by step, ... When debug mode is active, prompt change to debug>.

Commands:
(h)elp:

Show help on console

help:

Show help on help browser when possible otherwise display help in console

(q)uit:

Leave debug mode to return to normal mode of Scilab.

(w)here or bt:

Display callstack.

(e)xec: (r)un:

Execute command.

(d)isp var: (p)rint var:

Display variable var.

(c)ontinue:

Continue execution.

(a)bort:

Abort execution.

step(n)ext or next:

Continue execution to next expression.

step(i)n or in:

Continue execution to next expression in sub function.

step(o)ut or out:

Continue execution to next expression in previous function.

(b)reakpoint or break:
breakpoint function [line [condition]]

Add a breakpoint in a function at line line

If a condition is specified, a breakpoint become enable only if condition is %t

(del)ete [n]:

Remove all breakpoints.

If n is specified, remove breakpoint #n

enable [n]:

Enable all breakpoints.

If n is specified, enable breakpoint #n

disable [n]:

Disable all breakpoints.

If n is specified, disable breakpoint #n

(s)how [n]:

Show all breakpoints information.

If n is specified, show breakpoint #n

Examples

//function to overload cosine on string
function v=%c_cos(val)
    printf("val : %s\n", val);
    v = cos(evstr(val));
endfunction

//caller
function a=test_debug()
    b = cos("%pi");
    a = b * 3;
endfunction

debug
break test_debug
exec test_debug
where
stepin
disp val
continue
quit
function v=compute(val)
    v = 1;
    for i=1:val
        v = v * i;
    end
endfunction

debug
break compute 4 "i == 5"
exec compute(10)
disp val
disp i
disp v
continue
quit

History

VersionDescription
6.0.0 New version: console interface to Scilab 6 debugger.
Scilab Enterprises
Copyright (c) 2011-2017 (Scilab Enterprises)
Copyright (c) 1989-2012 (INRIA)
Copyright (c) 1989-2007 (ENPC)
with contributors
Last updated:
Tue Feb 14 15:02:38 CET 2017