73 lines
1.7 KiB
C++
73 lines
1.7 KiB
C++
/***
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*convert.cpp - RTC support
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*
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* Copyright (c) 1998-2001, Microsoft Corporation. All rights reserved.
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*
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*
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*Revision History:
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* 07-28-98 JWM Module incorporated into CRTs (from KFrei)
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* 11-03-98 KBF Moved pragma optimize to rtcpriv header
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* 05-11-99 KBF Error if RTC support define not enabled
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*
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****/
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#ifndef _RTC
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#error RunTime Check support not enabled!
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#endif
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#include "rtcpriv.h"
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char __fastcall
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_RTC_Check_2_to_1(short big)
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{
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unsigned bits = big & 0xFF00;
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if (bits && bits != 0xFF00)
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_RTC_Failure(_ReturnAddress(), _RTC_CVRT_LOSS_INFO);
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return (char)big;
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}
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char __fastcall
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_RTC_Check_4_to_1(int big)
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{
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unsigned int bits = big & 0xFFFFFF00;
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if (bits && bits != 0xFFFFFF00)
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_RTC_Failure(_ReturnAddress(), _RTC_CVRT_LOSS_INFO);
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return (char)big;
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}
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char __fastcall
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_RTC_Check_8_to_1(__int64 big)
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{
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unsigned __int64 bits = big & 0xFFFFFFFFFFFFFF00;
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if (bits && bits != 0xFFFFFFFFFFFFFF00)
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_RTC_Failure(_ReturnAddress(), _RTC_CVRT_LOSS_INFO);
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return (char)big;
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}
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short __fastcall
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_RTC_Check_4_to_2(int big)
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{
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unsigned int bits = big & 0xFFFF0000;
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if (bits && bits != 0xFFFF0000)
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_RTC_Failure(_ReturnAddress(), _RTC_CVRT_LOSS_INFO);
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return (short)big;
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}
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short __fastcall
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_RTC_Check_8_to_2(__int64 big)
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{
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unsigned __int64 bits = big & 0xFFFFFFFFFFFF0000;
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if (bits && bits != 0xFFFFFFFFFFFF0000)
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_RTC_Failure(_ReturnAddress(), _RTC_CVRT_LOSS_INFO);
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return (short)big;
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}
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int __fastcall
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_RTC_Check_8_to_4(__int64 big)
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{
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unsigned __int64 bits = big & 0xFFFFFFFF00000000;
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if (bits && bits != 0xFFFFFFFF00000000)
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_RTC_Failure(_ReturnAddress(), _RTC_CVRT_LOSS_INFO);
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return (int)big;
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}
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