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1 | function F = constraint(X,quantifier,Y) |
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2 | % Internal class for constraint list |
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3 | |
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4 | % Author Johan Löfberg |
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5 | % $Id: constraint.m,v 1.5 2005/06/02 13:40:00 joloef Exp $ |
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6 | |
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7 | superiorto('sdpvar'); |
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8 | superiorto('double'); |
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9 | |
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10 | if isa(X,'blkvar') |
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11 | X = sdpvar(X); |
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12 | end |
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13 | if isa(Y,'blkvar') |
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14 | Y = sdpvar(Y); |
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15 | end |
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16 | |
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17 | % Try to evaluate |
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18 | switch quantifier |
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19 | case {'>','>='} |
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20 | Z = X - Y; |
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21 | case {'<','<=','=='} |
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22 | Z = Y - X; |
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23 | otherwise |
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24 | error('Quantifier not supported') |
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25 | end |
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26 | |
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27 | F.List={X,quantifier,Y}; |
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28 | F.Evaluated{1} = Z; |
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29 | |
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30 | switch quantifier |
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31 | case {'>','<'} |
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32 | F.strict(1) = 1; |
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33 | case {'>=','<=','=='} |
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34 | F.strict(1) = 0; |
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35 | otherwise |
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36 | error('Quantifier not supported') |
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37 | end |
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38 | |
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39 | F = class(F,'constraint'); |
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40 | |
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