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Diffstat (limited to 'src/sat/msat/msatVec.c')
-rw-r--r-- | src/sat/msat/msatVec.c | 495 |
1 files changed, 495 insertions, 0 deletions
diff --git a/src/sat/msat/msatVec.c b/src/sat/msat/msatVec.c new file mode 100644 index 00000000..951969cf --- /dev/null +++ b/src/sat/msat/msatVec.c @@ -0,0 +1,495 @@ +/**CFile**************************************************************** + + FileName [msatVec.c] + + PackageName [A C version of SAT solver MINISAT, originally developed + in C++ by Niklas Een and Niklas Sorensson, Chalmers University of + Technology, Sweden: http://www.cs.chalmers.se/~een/Satzoo.] + + Synopsis [Integer vector borrowed from Extra.] + + Author [Alan Mishchenko <alanmi@eecs.berkeley.edu>] + + Affiliation [UC Berkeley] + + Date [Ver. 1.0. Started - January 1, 2004.] + + Revision [$Id: msatVec.c,v 1.0 2004/01/01 1:00:00 alanmi Exp $] + +***********************************************************************/ + +#include "msatInt.h" + +//////////////////////////////////////////////////////////////////////// +/// DECLARATIONS /// +//////////////////////////////////////////////////////////////////////// + +static int Msat_IntVecSortCompare1( int * pp1, int * pp2 ); +static int Msat_IntVecSortCompare2( int * pp1, int * pp2 ); + +//////////////////////////////////////////////////////////////////////// +/// FUNCTION DEFITIONS /// +//////////////////////////////////////////////////////////////////////// + +/**Function************************************************************* + + Synopsis [Allocates a vector with the given capacity.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Msat_IntVec_t * Msat_IntVecAlloc( int nCap ) +{ + Msat_IntVec_t * p; + p = ALLOC( Msat_IntVec_t, 1 ); + if ( nCap > 0 && nCap < 16 ) + nCap = 16; + p->nSize = 0; + p->nCap = nCap; + p->pArray = p->nCap? ALLOC( int, p->nCap ) : NULL; + return p; +} + +/**Function************************************************************* + + Synopsis [Creates the vector from an integer array of the given size.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Msat_IntVec_t * Msat_IntVecAllocArray( int * pArray, int nSize ) +{ + Msat_IntVec_t * p; + p = ALLOC( Msat_IntVec_t, 1 ); + p->nSize = nSize; + p->nCap = nSize; + p->pArray = pArray; + return p; +} + +/**Function************************************************************* + + Synopsis [Creates the vector from an integer array of the given size.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Msat_IntVec_t * Msat_IntVecAllocArrayCopy( int * pArray, int nSize ) +{ + Msat_IntVec_t * p; + p = ALLOC( Msat_IntVec_t, 1 ); + p->nSize = nSize; + p->nCap = nSize; + p->pArray = ALLOC( int, nSize ); + memcpy( p->pArray, pArray, sizeof(int) * nSize ); + return p; +} + +/**Function************************************************************* + + Synopsis [Duplicates the integer array.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Msat_IntVec_t * Msat_IntVecDup( Msat_IntVec_t * pVec ) +{ + Msat_IntVec_t * p; + p = ALLOC( Msat_IntVec_t, 1 ); + p->nSize = pVec->nSize; + p->nCap = pVec->nCap; + p->pArray = p->nCap? ALLOC( int, p->nCap ) : NULL; + memcpy( p->pArray, pVec->pArray, sizeof(int) * pVec->nSize ); + return p; +} + +/**Function************************************************************* + + Synopsis [Transfers the array into another vector.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Msat_IntVec_t * Msat_IntVecDupArray( Msat_IntVec_t * pVec ) +{ + Msat_IntVec_t * p; + p = ALLOC( Msat_IntVec_t, 1 ); + p->nSize = pVec->nSize; + p->nCap = pVec->nCap; + p->pArray = pVec->pArray; + pVec->nSize = 0; + pVec->nCap = 0; + pVec->pArray = NULL; + return p; +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Msat_IntVecFree( Msat_IntVec_t * p ) +{ + FREE( p->pArray ); + FREE( p ); +} + +/**Function************************************************************* + + Synopsis [Fills the vector with given number of entries.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Msat_IntVecFill( Msat_IntVec_t * p, int nSize, int Entry ) +{ + int i; + Msat_IntVecGrow( p, nSize ); + p->nSize = nSize; + for ( i = 0; i < p->nSize; i++ ) + p->pArray[i] = Entry; +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int * Msat_IntVecReleaseArray( Msat_IntVec_t * p ) +{ + int * pArray = p->pArray; + p->nCap = 0; + p->nSize = 0; + p->pArray = NULL; + return pArray; +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int * Msat_IntVecReadArray( Msat_IntVec_t * p ) +{ + return p->pArray; +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Msat_IntVecReadSize( Msat_IntVec_t * p ) +{ + return p->nSize; +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Msat_IntVecReadEntry( Msat_IntVec_t * p, int i ) +{ + assert( i >= 0 && i < p->nSize ); + return p->pArray[i]; +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Msat_IntVecWriteEntry( Msat_IntVec_t * p, int i, int Entry ) +{ + assert( i >= 0 && i < p->nSize ); + p->pArray[i] = Entry; +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Msat_IntVecReadEntryLast( Msat_IntVec_t * p ) +{ + return p->pArray[p->nSize-1]; +} + +/**Function************************************************************* + + Synopsis [Resizes the vector to the given capacity.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Msat_IntVecGrow( Msat_IntVec_t * p, int nCapMin ) +{ + if ( p->nCap >= nCapMin ) + return; + p->pArray = REALLOC( int, p->pArray, nCapMin ); + p->nCap = nCapMin; +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Msat_IntVecShrink( Msat_IntVec_t * p, int nSizeNew ) +{ + assert( p->nSize >= nSizeNew ); + p->nSize = nSizeNew; +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Msat_IntVecClear( Msat_IntVec_t * p ) +{ + p->nSize = 0; +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Msat_IntVecPush( Msat_IntVec_t * p, int Entry ) +{ + if ( p->nSize == p->nCap ) + { + if ( p->nCap < 16 ) + Msat_IntVecGrow( p, 16 ); + else + Msat_IntVecGrow( p, 2 * p->nCap ); + } + p->pArray[p->nSize++] = Entry; +} + +/**Function************************************************************* + + Synopsis [Add the element while ensuring uniqueness.] + + Description [Returns 1 if the element was found, and 0 if it was new. ] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Msat_IntVecPushUnique( Msat_IntVec_t * p, int Entry ) +{ + int i; + for ( i = 0; i < p->nSize; i++ ) + if ( p->pArray[i] == Entry ) + return 1; + Msat_IntVecPush( p, Entry ); + return 0; +} + +/**Function************************************************************* + + Synopsis [Inserts the element while sorting in the increasing order.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Msat_IntVecPushUniqueOrder( Msat_IntVec_t * p, int Entry, int fIncrease ) +{ + int Entry1, Entry2; + int i; + Msat_IntVecPushUnique( p, Entry ); + // find the p of the node + for ( i = p->nSize-1; i > 0; i-- ) + { + Entry1 = p->pArray[i ]; + Entry2 = p->pArray[i-1]; + if ( fIncrease && Entry1 >= Entry2 || + !fIncrease && Entry1 <= Entry2 ) + break; + p->pArray[i ] = Entry2; + p->pArray[i-1] = Entry1; + } +} + + +/**Function************************************************************* + + Synopsis [Returns the last entry and removes it from the list.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Msat_IntVecPop( Msat_IntVec_t * p ) +{ + assert( p->nSize > 0 ); + return p->pArray[--p->nSize]; +} + +/**Function************************************************************* + + Synopsis [Sorting the entries by their integer value.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Msat_IntVecSort( Msat_IntVec_t * p, int fReverse ) +{ + if ( fReverse ) + qsort( (void *)p->pArray, p->nSize, sizeof(int), + (int (*)(const void *, const void *)) Msat_IntVecSortCompare2 ); + else + qsort( (void *)p->pArray, p->nSize, sizeof(int), + (int (*)(const void *, const void *)) Msat_IntVecSortCompare1 ); +} + +/**Function************************************************************* + + Synopsis [Comparison procedure for two clauses.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Msat_IntVecSortCompare1( int * pp1, int * pp2 ) +{ + // for some reason commenting out lines (as shown) led to crashing of the release version + if ( *pp1 < *pp2 ) + return -1; + if ( *pp1 > *pp2 ) // + return 1; + return 0; // +} + +/**Function************************************************************* + + Synopsis [Comparison procedure for two clauses.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Msat_IntVecSortCompare2( int * pp1, int * pp2 ) +{ + // for some reason commenting out lines (as shown) led to crashing of the release version + if ( *pp1 > *pp2 ) + return -1; + if ( *pp1 < *pp2 ) // + return 1; + return 0; // +} + +//////////////////////////////////////////////////////////////////////// +/// END OF FILE /// +//////////////////////////////////////////////////////////////////////// + + |