mirror of
https://github.com/YosysHQ/yosys
synced 2025-10-30 19:22:31 +00:00
98 lines
3.2 KiB
C++
98 lines
3.2 KiB
C++
/******************************************************************************************[Sort.h]
|
|
Copyright (c) 2003-2007, Niklas Een, Niklas Sorensson
|
|
Copyright (c) 2007-2010, 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 Minisat_Sort_h
|
|
#define Minisat_Sort_h
|
|
|
|
#include "Vec.h"
|
|
|
|
//=================================================================================================
|
|
// Some sorting algorithms for vec's
|
|
|
|
|
|
namespace Minisat {
|
|
|
|
template<class T>
|
|
struct LessThan_default {
|
|
bool operator () (T x, T y) { return x < y; }
|
|
};
|
|
|
|
|
|
template <class T, class LessThan>
|
|
void selectionSort(T* array, int size, LessThan lt)
|
|
{
|
|
int i, j, best_i;
|
|
T tmp;
|
|
|
|
for (i = 0; i < size-1; i++){
|
|
best_i = i;
|
|
for (j = i+1; j < size; j++){
|
|
if (lt(array[j], array[best_i]))
|
|
best_i = j;
|
|
}
|
|
tmp = array[i]; array[i] = array[best_i]; array[best_i] = tmp;
|
|
}
|
|
}
|
|
template <class T> static inline void selectionSort(T* array, int size) {
|
|
selectionSort(array, size, LessThan_default<T>()); }
|
|
|
|
template <class T, class LessThan>
|
|
void sort(T* array, int size, LessThan lt)
|
|
{
|
|
if (size <= 15)
|
|
selectionSort(array, size, lt);
|
|
|
|
else{
|
|
T pivot = array[size / 2];
|
|
T tmp;
|
|
int i = -1;
|
|
int j = size;
|
|
|
|
for(;;){
|
|
do i++; while(lt(array[i], pivot));
|
|
do j--; while(lt(pivot, array[j]));
|
|
|
|
if (i >= j) break;
|
|
|
|
tmp = array[i]; array[i] = array[j]; array[j] = tmp;
|
|
}
|
|
|
|
sort(array , i , lt);
|
|
sort(&array[i], size-i, lt);
|
|
}
|
|
}
|
|
template <class T> static inline void sort(T* array, int size) {
|
|
sort(array, size, LessThan_default<T>()); }
|
|
|
|
|
|
//=================================================================================================
|
|
// For 'vec's:
|
|
|
|
|
|
template <class T, class LessThan> void sort(vec<T>& v, LessThan lt) {
|
|
sort((T*)v, v.size(), lt); }
|
|
template <class T> void sort(vec<T>& v) {
|
|
sort(v, LessThan_default<T>()); }
|
|
|
|
|
|
//=================================================================================================
|
|
}
|
|
|
|
#endif
|