Summary of Kernel-Mode Safe Integer Functions

Article
2021-12-15

The following table summarizes the safe integer functions that are available to kernel-mode drivers.

Functions	Purpose
RtlDWordPtrAdd RtlInt8Add RtlIntAdd RtlIntPtrAdd RtlLongLongAdd RtlLongPtrAdd RtlPtrdiffTAdd RtlShortAdd RtlSizeTAdd RtlSSIZETAdd RtlUInt8Add RtlUIntAdd RtlUIntPtrAdd RtlULongAdd RtlULongLongAdd RtlULongPtrAdd RtlUShortAdd	Addition Functions
RtlDWordPtrMult RtlInt8Mult RtlIntMult RtlIntPtrMult RtlLongLongMult RtlLongMult RtlLongPtrMult RtlPtrdiffTMult RtlShortMult RtlSSIZETMult RtlUInt8Mult RtlSizeTMult RtlULongMult RtlULongLongMult RtlUIntPtrMult RtlUIntMult RtlULongPtrMult RtlUShortMult	Multiplication Functions
RtlShortSub RtlUShortSub RtlULongPtrSub RtlULongLongSub RtlULongSub RtlUInt8Sub RtlUIntPtrSub RtlUIntSub RtlSSIZETSub RtlSizeTSub RtlDWordPtrSub RtlInt8Sub RtlPtrdiffTSub RtlLongSub RtlIntSub RtlLongLongSub RtlIntPtrSub RtlLongPtrSub	Subtraction Functions
RtlUShortToShort RtlLongPtrToShort RtlLongToShort RtlLongLongToShort RtlULongLongToShort RtlULongToShort RtlUIntPtrToShort RtlULongPtrToShort RtlUIntToShort RtlIntPtrToShort RtlIntToShort	Conversion to Short
RtlLongPtrToChar RtlLongLongToChar RtlUInt8ToChar RtlULongToChar RtlLongToChar RtlULongLongToChar RtlUIntToChar RtlIntToChar RtlIntPtrToChar RtlULongPtrToChar RtlShortToChar RtlUShortToChar RtlByteToChar RtlUIntPtrToChar	Conversion to Char
RtlIntPtrToInt RtlLongLongToInt RtlLongPtrToInt RtlULongLongToInt RtlULongPtrToInt RtlLongToInt RtlULongToInt RtlUIntToInt RtlUIntPtrToInt	Conversion to Int
RtlUInt8ToInt8 RtlLongLongToInt8 RtlLongPtrToInt8 RtlULongPtrToInt8 RtlLongToInt8 RtlULongLongToInt8 RtlULongToInt8 RtlIntToInt8 RtlIntPtrToInt8 RtlUIntToInt8 RtlByteToInt8 RtlUIntPtrToInt8 RtlUShortToInt8 RtlShortToInt8	Conversion to Int8
RtlUIntPtrToInt16	Conversion to Int16
RtlLongLongToIntPtr RtlLongPtrToIntPtr RtlLongToIntPtr RtlULongToIntPtr RtlULongPtrToIntPtr RtlUIntPtrToIntPtr RtlUIntToIntPtr	Conversion to IntPtr
RtlULongToLong RtlIntPtrToLong RtlLongLongToLong RtlUIntPtrToLong RtlLongPtrToLong RtlUIntToLong RtlULongLongToLong RtlULongPtrToLong	Conversion to Long
RtlIntPtrToLongPtr RtlULongToLongPtr RtlLongLongToLongPtr RtlUIntPtrToLongPtr RtlULongLongToLongPtr RtlUIntToLongPtr RtlULongPtrToLongPtr	Conversion to LongPtr
RtlULongLongToLongLong RtlULongPtrToLongLong RtlUIntPtrToLongLong	Conversion to LongLong
RtlIntPtrToUShort RtlInt8ToUShort RtlULongToUShort RtlIntToUShort RtlLongLongToUShort RtlLongPtrToUShort RtlLongToUShort RtlShortToUShort RtlUIntPtrToUShort RtlUIntToUShort RtlULongLongToUShort RtlULongPtrToUShort	Conversion to UShort
RtlUShortToUChar RtlInt8ToUChar RtlIntPtrToUChar RtlIntToUChar RtlLongLongToUChar RtlLongPtrToUChar RtlLongToUChar RtlShortToUChar RtlUIntPtrToUChar RtlUIntToUChar RtlULongLongToUChar RtlULongPtrToUChar RtlULongToUChar	Conversion to UChar
RtlInt8ToUInt RtlULongToUInt RtlLongLongToUInt RtlIntPtrToUInt RtlShortToUInt RtlLongPtrToUInt RtlLongToUInt RtlUIntPtrToUInt RtlIntToUInt RtlULongLongToUInt RtlULongPtrToUInt	Conversion to Uint
RtlUShortToUInt8 RtlInt8ToUInt8 RtlLongLongToUInt8 RtlIntToUInt8 RtlIntPtrToUInt8 RtlLongPtrToUInt8 RtlShortToUInt8 RtlLongToUInt8 RtlUIntPtrToUInt8 RtlUIntToUInt8 RtlULongLongToUInt8 RtlULongPtrToUInt8 RtlULongToUInt8	Conversion to Uint8
RtlUIntPtrToUInt16	Conversion to Uint16
RtlULongToUIntPtr RtlLongToUIntPtr RtlShortToUIntPtr RtlInt8ToUIntPtr RtlIntPtrToUIntPtr RtlLongPtrToUIntPtr RtlULongLongToUIntPtr RtlULongPtrToUIntPtr	Conversion to UintPtr
RtlULongPtrToULong RtlInt8ToULong RtlIntPtrToULong RtlIntToULong RtlLongLongToULong RtlLongPtrToULong RtlLongToULong RtlShortToULong RtlUIntPtrToULong RtlULongLongToULong	Conversion to ULong
RtlShortToULongLong RtlInt8ToULongLong RtlIntToULongLong RtlLongLongToULongLong RtlIntPtrToULongLong RtlLongPtrToULongLong RtlLongToULongLong	Conversion to ULongLong
RtlULongLongToULongPtr RtlIntPtrToULongPtr RtlLongPtrToULongPtr RtlInt8ToULongPtr RtlLongToULongPtr RtlShortToULongPtr	Conversion to ULongPtr

Share via

Summary of Kernel-Mode Safe Integer Functions

Feedback

Additional resources