Developer Reference

Contents

Cmp_BN

Compares two Big Numbers.

Syntax

IppStatus ippsCmp_BN(const IppsBigNumState*
pA
, const IppsBigNumState*
pB
, Ipp32u*
pResult
);
Include Files
ippcp.h
Parameters
pA
Pointer to the context of the Big Number A.
pB
Pointer to the context of the Big Number B.
pResult
Pointer to the result of the comparison.
Description
This function compares Big Numbers A and B and sets up the result according to the following conditions:
  • if A==B, then
    pResult
    =
    IS_ZERO
  • if A > B, then
    pResult
    =
    GREATER_THAN_ZERO
  • if A < B, then
    pResult
    =
    LESS_THAN_ZERO
Return Values
ippStsNoErr
Indicates no error. Any other value indicates an error or warning.
ippStsNullPtrErr
Indicates an error condition if any of the specified pointers is
NULL
.
ippStsContextMatchErr
Indicates an error condition if the context parameter does not match the operation.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804