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[UCRT] Import Microsoft.Windows.SDK.CRTSource version 10.0.22621.3

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Imported from https://www.nuget.org/packages/Microsoft.Windows.SDK.CRTSource/10.0.22621.3
License: MIT
This commit is contained in:
Timo Kreuzer 2024-05-11 07:03:12 +02:00
parent f1b60c66f0
commit 04e0dc4a7a
568 changed files with 115483 additions and 0 deletions
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62
sdk/lib/ucrt/stdlib/byteswap.cpp Normal file
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//
// byteswap.cpp
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// Defines functions that swap the bytes of an unsigned integer.
//
#include <stdlib.h>
#pragma function(_byteswap_ulong, _byteswap_uint64, _byteswap_ushort)
/***
*unsigned long _byteswap_ulong(i) - long byteswap
*
*Purpose:
* Performs a byte swap on an unsigned integer.
*
*Entry:
* unsigned long i: value to swap
*
*Exit:
* returns swaped
*
*Exceptions:
* None.
*
*******************************************************************************/
extern "C" unsigned long __cdecl _byteswap_ulong(unsigned long const i)
{
unsigned int j;
j = (i << 24);
j += (i << 8) & 0x00FF0000;
j += (i >> 8) & 0x0000FF00;
j += (i >> 24);
return j;
}
extern "C" unsigned short __cdecl _byteswap_ushort(unsigned short const i)
{
unsigned short j;
j = (i << 8);
j += (i >> 8);
return j;
}
extern "C" unsigned __int64 __cdecl _byteswap_uint64(unsigned __int64 const i)
{
unsigned __int64 j;
j = (i << 56);
j += (i << 40) & 0x00FF000000000000;
j += (i << 24) & 0x0000FF0000000000;
j += (i << 8) & 0x000000FF00000000;
j += (i >> 8) & 0x00000000FF000000;
j += (i >> 24) & 0x0000000000FF0000;
j += (i >> 40) & 0x000000000000FF00;
j += (i >> 56);
return j;
}