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The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com.
The latest version of this topic can be found at __stosw.
Microsoft Specific**
Generates a store string instruction (rep stosw).
Syntax
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
| Intrinsic | Architecture |
|---|---|
__stosw |
x86, x64 |
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