update packages

[CreaPhase.git] / octave_packages / m / strings / dec2hex.m

diff --git a/octave_packages/m/strings/dec2hex.m b/octave_packages/m/strings/dec2hex.m
new file mode 100644 (file)
index 0000000..a2adf55
--- /dev/null
+++ b/octave_packages/m/strings/dec2hex.m
@@ -0,0 +1,63 @@
+## Copyright (C) 1996-2012 Daniel Calvelo
+##
+## This file is part of Octave.
+##
+## Octave is free software; you can redistribute it and/or modify it
+## under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 3 of the License, or (at
+## your option) any later version.
+##
+## Octave is distributed in the hope that it will be useful, but
+## WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+## General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with Octave; see the file COPYING.  If not, see
+## <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {} dec2hex (@var{d}, @var{len})
+## Return the hexadecimal string corresponding to the non-negative
+## integer @var{d}.  For example:
+##
+## @example
+## @group
+## dec2hex (2748)
+##      @result{} "ABC"
+## @end group
+## @end example
+##
+## If @var{d} is a matrix or cell array, return a string matrix with one
+## row per element in @var{d}, padded with leading zeros to the width of 
+## the largest value.
+##
+## The optional second argument, @var{len}, specifies the minimum
+## number of digits in the result.
+## @seealso{hex2dec, dec2base, dec2bin}
+## @end deftypefn
+
+## Author: Daniel Calvelo <dcalvelo@yahoo.com>
+## Adapted-by: Paul Kienzle <pkienzle@kienzle.powernet.co.uk>
+
+function h = dec2hex (d, len)
+
+  if (nargin == 1)
+    h = dec2base (d, 16);
+  elseif (nargin == 2)
+    h = dec2base (d, 16, len);
+  else
+    print_usage ();
+  endif
+
+endfunction
+
+
+%!assert(dec2hex (2748), "ABC");
+%!assert(dec2hex (2748, 5), "00ABC");
+%!assert(dec2hex ({2748, 2746}), ["ABC"; "ABA"]);
+
+%% Test input validation
+%!error dec2hex ();
+%!error dec2hex (1, 2, 3);
+