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Last change
on this file since 4565 was
4565,
checked in by patrick, 19 years ago
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orxonox/trunk: added the newmat library to the project. needs some translation in directory, temp under util/newmat. is needed by the collision detection engine to perform lin alg operations such as eigenvector decomposition. perhaps we will make our own library to do that later.
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File size:
1.5 KB
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| 1 | //$$ controlw.h Control word class |
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| 2 | |
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| 3 | #ifndef CONTROL_WORD_LIB |
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| 4 | #define CONTROL_WORD_LIB 0 |
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| 5 | |
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| 6 | // for organising an int as a series of bits which indicate whether an |
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| 7 | // option is on or off. |
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| 8 | |
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| 9 | class ControlWord |
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| 10 | { |
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| 11 | protected: |
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| 12 | int cw; // the control word |
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| 13 | public: |
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| 14 | ControlWord() : cw(0) {} // do nothing |
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| 15 | ControlWord(int i) : cw(i) {} // load an integer |
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| 16 | |
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| 17 | // select specific bits (for testing at least one set) |
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| 18 | ControlWord operator*(ControlWord i) const |
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| 19 | { return ControlWord(cw & i.cw); } |
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| 20 | void operator*=(ControlWord i) { cw &= i.cw; } |
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| 21 | |
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| 22 | // set bits |
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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 | // reset bits |
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| 28 | ControlWord operator-(ControlWord i) const |
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| 29 | { return ControlWord(cw - (cw & i.cw)); } |
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| 30 | void operator-=(ControlWord i) { cw -= (cw & i.cw); } |
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| 31 | |
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| 32 | // check if all of selected bits set or reset |
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| 33 | bool operator>=(ControlWord i) const { return (cw & i.cw) == i.cw; } |
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| 34 | bool operator<=(ControlWord i) const { return (cw & i.cw) == cw; } |
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| 35 | |
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| 36 | // flip selected bits |
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| 37 | ControlWord operator^(ControlWord i) const |
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| 38 | { return ControlWord(cw ^ i.cw); } |
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| 39 | ControlWord operator~() const { return ControlWord(~cw); } |
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| 40 | |
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| 41 | // convert to integer |
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| 42 | int operator+() const { return cw; } |
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| 43 | int operator!() const { return cw==0; } |
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| 44 | FREE_CHECK(ControlWord) |
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| 45 | }; |
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| 46 | |
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| 47 | |
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| 48 | #endif |
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