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+% Copyright 2018 by Till Tantau and others Wibrow
+%
+% This file may be distributed and/or modified
+%
+% 1. under the LaTeX Project Public License and/or
+% 2. under the GNU Public License.
+%
+% See the file doc/generic/pgf/licenses/LICENSE for more details.
+
+\usetikzlibrary{circuits.logic}%
+\usepgflibrary{shapes.gates.logic.IEC}%
+
+
+%
+% When this lib is loaded, all symbols default to IEC
+%
+
+\tikzset{
+ circuit logic IEC/.style=
+ {
+ circuit logic,
+ set and gate graphic = and gate IEC graphic,
+ set nand gate graphic = nand gate IEC graphic,
+ set or gate graphic = or gate IEC graphic,
+ set nor gate graphic = nor gate IEC graphic,
+ set xor gate graphic = xor gate IEC graphic,
+ set xnor gate graphic = xnor gate IEC graphic,
+ set not gate graphic = not gate IEC graphic,
+ set buffer gate graphic = buffer gate IEC graphic,
+ %
+ and gate IEC symbol = {$\scriptstyle\char`\&$},
+ nand gate IEC symbol = {$\scriptstyle\char`\&$},
+ or gate IEC symbol = {$\scriptstyle\geq1$},
+ nor gate IEC symbol = {$\scriptstyle\geq1$},
+ xor gate IEC symbol = {$\scriptstyle=1$},
+ xnor gate IEC symbol = {$\scriptstyle=1$},
+ not gate IEC symbol = {$\scriptstyle1$},
+ buffer gate IEC symbol = {$\scriptstyle1$},
+ },
+}%
+
+
+%
+% The logical gate graphics are all nearly identical, so we provide a
+% simple style for creating them:
+%
+\tikzset{
+ circuit logic IEC make graphic/.style=
+ {
+ #1 graphic/.style={
+ circuit symbol open,
+ circuit symbol size=width 2.5 height 4,
+ shape=#1,
+ inner sep=.5ex
+ }
+ }
+}%
+
+
+\tikzset{
+ circuit logic IEC make graphic=and gate IEC,
+ circuit logic IEC make graphic=nand gate IEC,
+ circuit logic IEC make graphic=or gate IEC,
+ circuit logic IEC make graphic=nor gate IEC,
+ circuit logic IEC make graphic=xor gate IEC,
+ circuit logic IEC make graphic=xnor gate IEC,
+ circuit logic IEC make graphic=not gate IEC,
+ circuit logic IEC make graphic=buffer gate IEC,
+ circuit logic IEC make graphic=and gate CDH,
+ circuit logic IEC make graphic=nand gate CDH,
+}%
+
+
+
+\endinput