diff options
Diffstat (limited to 'src/misc/util/abc_global.h')
| -rw-r--r-- | src/misc/util/abc_global.h | 26 |
1 files changed, 2 insertions, 24 deletions
diff --git a/src/misc/util/abc_global.h b/src/misc/util/abc_global.h index aac1515b..7b7029be 100644 --- a/src/misc/util/abc_global.h +++ b/src/misc/util/abc_global.h @@ -480,30 +480,6 @@ static inline int Abc_PrimeCudd( unsigned int p ) } // end of Cudd_Prime -// Creates a sequence of random numbers. -// http://www.codeproject.com/KB/recipes/SimpleRNG.aspx - -#define NUMBER1 3716960521u -#define NUMBER2 2174103536u - -static inline unsigned Abc_Random( int fReset ) -{ - static unsigned int m_z = NUMBER1; - static unsigned int m_w = NUMBER2; - if ( fReset ) - { - m_z = NUMBER1; - m_w = NUMBER2; - } - m_z = 36969 * (m_z & 65535) + (m_z >> 16); - m_w = 18000 * (m_w & 65535) + (m_w >> 16); - return (m_z << 16) + m_w; -} -static inline word Abc_RandomW( int fReset ) -{ - return ((word)Abc_Random(fReset) << 32) | ((word)Abc_Random(fReset) << 0); -} - // the returned buffer has 32 unused bytes at the end, filled with zeros static inline void * Abc_FileReadContents( char * pFileName, int * pnFileSize ) { @@ -537,6 +513,8 @@ extern void Abc_QuickSort3( word * pData, int nSize, int fDecrease ); extern void Abc_QuickSortCostData( int * pCosts, int nSize, int fDecrease, word * pData, int * pResult ); extern int * Abc_QuickSortCost( int * pCosts, int nSize, int fDecrease ); +extern unsigned Abc_Random( int fReset ); +extern word Abc_RandomW( int fReset ); ABC_NAMESPACE_HEADER_END |