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Diffstat (limited to 'src/prop/minisat/mtl/Queue.h')
-rw-r--r-- | src/prop/minisat/mtl/Queue.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/src/prop/minisat/mtl/Queue.h b/src/prop/minisat/mtl/Queue.h new file mode 100644 index 000000000..2cc110ce9 --- /dev/null +++ b/src/prop/minisat/mtl/Queue.h @@ -0,0 +1,82 @@ +/*****************************************************************************************[Queue.h] +MiniSat -- Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson + +Permission is hereby granted, free of charge, to any person obtaining a copy of this software and +associated documentation files (the "Software"), to deal in the Software without restriction, +including without limitation the rights to use, copy, modify, merge, publish, distribute, +sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all copies or +substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT +NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT +OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +**************************************************************************************************/ + +#ifndef Queue_h +#define Queue_h + +#include "Vec.h" + +//================================================================================================= + + +template <class T> +class Queue { + vec<T> elems; + int first; + +public: + Queue(void) : first(0) { } + + void insert(T x) { elems.push(x); } + T peek () const { return elems[first]; } + void pop () { first++; } + + void clear(bool dealloc = false) { elems.clear(dealloc); first = 0; } + int size(void) { return elems.size() - first; } + + //bool has(T x) { for (int i = first; i < elems.size(); i++) if (elems[i] == x) return true; return false; } + + const T& operator [] (int index) const { return elems[first + index]; } + +}; + +//template<class T> +//class Queue { +// vec<T> buf; +// int first; +// int end; +// +//public: +// typedef T Key; +// +// Queue() : buf(1), first(0), end(0) {} +// +// void clear () { buf.shrinkTo(1); first = end = 0; } +// int size () { return (end >= first) ? end - first : end - first + buf.size(); } +// +// T peek () { assert(first != end); return buf[first]; } +// void pop () { assert(first != end); first++; if (first == buf.size()) first = 0; } +// void insert(T elem) { // INVARIANT: buf[end] is always unused +// buf[end++] = elem; +// if (end == buf.size()) end = 0; +// if (first == end){ // Resize: +// vec<T> tmp((buf.size()*3 + 1) >> 1); +// //**/printf("queue alloc: %d elems (%.1f MB)\n", tmp.size(), tmp.size() * sizeof(T) / 1000000.0); +// int i = 0; +// for (int j = first; j < buf.size(); j++) tmp[i++] = buf[j]; +// for (int j = 0 ; j < end ; j++) tmp[i++] = buf[j]; +// first = 0; +// end = buf.size(); +// tmp.moveTo(buf); +// } +// } +//}; + +//================================================================================================= +#endif |