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     40 
     41 /*
     42 //               Intel(R) Integrated Performance Primitives
     43 //                   Cryptographic Primitives (ippcp)
     44 //
     45 //  Contents:
     46 //     ippsGetSize_BN()
     47 //
     48 */
     49 
     50 #include "owndefs.h"
     51 #include "owncp.h"
     52 #include "pcpbn.h"
     53 #include "pcptool.h"
     54 
     55 
     56 /*F*
     57 //    Name: ippsGetSize_BN
     58 //
     59 // Purpose: Returns BigNum room.
     60 //
     61 // Returns:                Reason:
     62 //    ippStsNullPtrErr        pBN == NULL
     63 //                            pSize == NULL
     64 //    ippStsContextMatchErr   !BN_VALID_ID(pBN)
     65 //    ippStsNoErr             no errors
     66 //
     67 // Parameters:
     68 //    pBN      BigNum ctx
     69 //    pSize    max BigNum length (in Ipp32u chunks)
     70 //
     71 *F*/
     72 IPPFUN(IppStatus, ippsGetSize_BN, (const IppsBigNumState* pBN, int* pSize))
     73 {
     74    IPP_BAD_PTR2_RET(pBN, pSize);
     75 
     76    pBN = (IppsBigNumState*)( IPP_ALIGNED_PTR(pBN, BN_ALIGNMENT) );
     77    IPP_BADARG_RET(!BN_VALID_ID(pBN), ippStsContextMatchErr);
     78 
     79    *pSize = BN_ROOM(pBN)*sizeof(BNU_CHUNK_T)/sizeof(Ipp32u);
     80 
     81     return ippStsNoErr;
     82 }
     83