__stosw

Microsoft Specific

Generates a store string instruction (rep stosw).

void __stosw( 
   unsigned short* Dest, 
   unsigned short Data, 
   size_t Count 
);

Parameters

• [out] Dest
  The destination of the operation.

• [in] Data
  The data to store.

• [in] Count
  The length of the block of words to write.

Requirements

Header file <intrin.h>

Remarks

The result is that the word Data is written into a block of Count words in the Dest string.

This routine is only available as an intrinsic.

Example

// stosw.c
// processor: x86, x64
#include <stdio.h>
#include <intrin.h>

#pragma intrinsic(__stosw)

int main()
{
    unsigned short val = 128;
    unsigned short a[100];
    memset(a, 0, sizeof(a));
    __stosw(a+10, val, 2);
    printf_s("%u %u %u %u", a[9], a[10], a[11], a[12]);   
}

0 128 128 0

See Also

Concepts

Compiler Intrinsics