Last change
on this file since 2096 was
2096,
checked in by ldelgass, 14 years ago
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Normalize line endings, set eol-style to native on *.cpp, *.h files
|
-
Property svn:eol-style set to
native
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File size:
1.5 KB
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Line | |
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1 | /// \ingroup newmat |
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2 | ///@{ |
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3 | |
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4 | /// \file controlw.h |
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5 | /// Control word class. |
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6 | /// Manipulate bits used for setting options. |
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7 | |
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8 | |
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9 | #ifndef CONTROL_WORD_LIB |
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10 | #define CONTROL_WORD_LIB 0 |
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11 | |
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12 | /// Organise an int as a series of bits to set options. |
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13 | /// \internal |
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14 | class ControlWord |
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15 | { |
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16 | protected: |
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17 | int cw; // the control word |
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18 | public: |
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19 | ControlWord() : cw(0) {} // do nothing |
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20 | ControlWord(int i) : cw(i) {} // load an integer |
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21 | |
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22 | // select specific bits (for testing at least one set) |
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23 | ControlWord operator*(ControlWord i) const |
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24 | { return ControlWord(cw & i.cw); } |
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25 | void operator*=(ControlWord i) { cw &= i.cw; } |
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26 | |
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27 | // set bits |
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28 | ControlWord operator+(ControlWord i) const |
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29 | { return ControlWord(cw | i.cw); } |
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30 | void operator+=(ControlWord i) { cw |= i.cw; } |
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31 | |
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32 | // reset bits |
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33 | ControlWord operator-(ControlWord i) const |
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34 | { return ControlWord(cw - (cw & i.cw)); } |
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35 | void operator-=(ControlWord i) { cw -= (cw & i.cw); } |
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36 | |
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37 | // check if all of selected bits set or reset |
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38 | bool operator>=(ControlWord i) const { return (cw & i.cw) == i.cw; } |
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39 | bool operator<=(ControlWord i) const { return (cw & i.cw) == cw; } |
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40 | |
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41 | // flip selected bits |
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42 | ControlWord operator^(ControlWord i) const |
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43 | { return ControlWord(cw ^ i.cw); } |
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44 | ControlWord operator~() const { return ControlWord(~cw); } |
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45 | |
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46 | // convert to integer |
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47 | int operator+() const { return cw; } |
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48 | int operator!() const { return cw==0; } |
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49 | FREE_CHECK(ControlWord) |
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50 | }; |
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51 | |
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52 | |
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53 | #endif |
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54 | |
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55 | ///@} |
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56 | |
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