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_CountLeadingSigns, _CountLeadingSigns64 

Visual Studio 2005

This function returns the number of contiguous bits that match the sign bit, starting with the next most significant bit.


unsigned __cdecl _CountLeadingSigns(
  long arg1
);

unsigned __cdecl _CountLeadingSigns64(
  __int64 arg1
);

Parameters

arg1

[in] The unsigned integer value that the function operates on.

The number of contiguous bits in arg1 that match the sign bit.

This function can be implemented by calling a runtime function.

Routine Required header Architecture

_CountLeadingSigns

<cmnintrin.h>

x86, ARM, SH-4, MIPS

_CountLeadingSigns64

<cmnintrin.h>

x86, ARM, SH-4, MIPS

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