Integer Intrinsic Functions
Integer intrinsic functions implement integer operations that do not have corresponding C operators. Some of these functions have always been part of the Microsoft C Run-Time Library for Windows CE, and the intrinsic versions perform the same operation as the run-time versions. For more information, see Microsoft C Run-Time Library for Windows CE .NET.
The following table shows the intrinsic functions for integer operations.
| Intrinsic function | Description |
|---|---|
| abs labs _abs64 |
Takes the absolute value. |
| _rotl _lrotl _rotl64 |
Rotates bits left. |
| _rotr _lrotr _rotr64 |
Rotates bits right. |
| _byteswap_ushort _byteswap_ulong _byteswap_uint64 |
Reverses bytes. |
| _MulUnsignedHigh _MulHigh |
Returns the high-order 32 bits result of multiplying the two arguments together. |
| _CountLeadingZeros _CountLeadingZeros64 |
These return the number of contiguous zero bits starting with the most significant bit. The return value is in the range [0..32] or [0..64], respectively. |
| _CountLeadingOnes _CountLeadingOnes64 |
Returns the number of contiguous one bits starting with the most significant bit. The return value is in the range [0..32] or [0..64], respectively. |
| _CountLeadingSigns _CountLeadingSigns64 |
Returns the number of contiguous bits that match the sign bit, starting with the next most significant bit. The return value is in the range [0..31] or [0..63], respectively. |
| _CountOneBits _CountOneBits64 |
Returns the number of one bits in the argument. The return value is in the range [0..32] or [0..64], respectively. |
See Also
Common Intrinsic Functions | Floating-Point Intrinsic Functions | String and Block Intrinsic Functions | System Intrinsic Functions | Microprocessor-specific Intrinsic Functions
Last updated on Thursday, April 08, 2004
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