M2SCI function

mtlb_logical - Matlab logical emulation function

### Description

There is no Scilab equivalent function for Matlab `logical` but its behavior can be easyly reproduced.

The function `mtlb_logical(A)` is used by `mfile2sci` to replace `logical(A)` when it was not possible to know what was the input 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_logical` calls:

  - If `A` is a boolean matrix `mtlb_logical(A)` may be replaced by `A`
  - If `A` is not an empty matrix `mtlb_logical(A)` may be replaced by `A<>[]`
  - If `A` is an empty matrix `mtlb_logical(A)` may be replaced by `[]`

Caution: `mtlb_logical` has not to be used for hand coded functions.

### Authors

  V.C.