M2SCI function
Last update : 20/12/2004
mtlb_eval - Matlab eval emulation function
Description
Scilab equivalent for Matlab eval is different according to its inputs and outputs
The function mtlb_eval(str1,str2) is used by
mfile2sci to replace eval because it was not possible to know
what were the inputs while porting Matlab code to Scilab. This function will
determine the correct semantic at run time. If you want to have a
more efficient code it is possible to replace mtlb_eval calls:
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When called with one input and no output,
mtlb_eval(str1) may be replaced by evstr(str1)
if str1 is a valid Scilab expression
or by execstr(str1)
if str1 is a valid Scilab instruction.
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When called with one input and one output,
val=mtlb_eval(str1) may be replaced by val=evstr(str1)
if str1 is a valid Scilab instruction.
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When called with two inputs and no output,
mtlb_eval(str1,str2) may be replaced by:
if execstr(str1,"errcatch")<>0 then execstr(str2);end
if str1 and str2 are valid Scilab instructions.
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When called with more than one output and one input,
[val1,val2,...]=mtlb_eval(str1) may be replaced by
execstr("[val1,val2,...]"+str1)
if str1 is a valid Scilab instruction.
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When called with two inputs and more than one output,
[val1,val2,...]=mtlb_eval(str1,str2) may be replaced by:
if execstr("[val1,val2,...]"+str1,"errcatch")<>0 then
execstr("[val1,val2,...]"+str2);
end
if str1 and str2 are valid Scilab instructions.
Caution: mtlb_eval has not to be used for hand coded functions.
See Also
evstr, execstr,
Authors
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V.C.