#ifndef _NTINTSAFE_H_INCLUDED_
#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_SYSTEM | WINAPI_PARTITION_GAMES)

//
// USHORT -> CHAR conversion
//
__forceinline
NTSTATUS
RtlUShortToChar(
    _In_ USHORT usOperand,
    _Out_ _Deref_out_range_(==, usOperand) CHAR* pch)
{
#ifdef _CHAR_UNSIGNED
    return RtlUShortToUChar(usOperand, (UCHAR*)pch);
#else
    return RtlUShortToInt8(usOperand, (INT8*)pch);
#endif // _CHAR_UNSIGNED
}

#endif
#endif
View code on GitHub

// ntintsafe.h

NTSTATUS RtlUShortToChar(
  [in]  USHORT usOperand,
  [out] CHAR   *pch
);
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Edit description on GitHub

Windows Driver Kit DDI reference (nf-ntintsafe-rtlushorttochar)

RtlUShortToChar function

Description

Converts a value of type USHORT to a value of type CHAR.

Parameters

`usOperand` [in]

The value to be converted.

`pch` [out]

A pointer to the converted value. In the case where the conversion causes a truncation of the original value, the function returns STATUS_INTEGER_OVERFLOW and this parameter is not valid.

Return value

Returns STATUS_SUCCESS if the operation is successful.

See the implementation of this helper function in ntintsafe.h in the WDK for possible error return values.

Remarks

This is one of a set of inline functions designed to provide type conversions and perform validity checks with minimal impact on performance.

View the official Windows Driver Kit DDI reference