__readfsbyte, __readfsdword, __readfsqword, __readfsword


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Microsoft Specific**

Read memory from a location specified by an offset relative to the beginning of the FS segment.


unsigned char __readfsbyte(   
   unsigned long Offset   
unsigned short __readfsword(   
   unsigned long Offset   
unsigned long __readfsdword(   
   unsigned long Offset  
unsigned __int64 __readfsqword(   
   unsigned long Offset   


[in] Offset
The offset from the beginning of FS to read from.

Return Value

The memory contents of the byte, word, doubleword, or quadword (as indicated by the name of the function called) at the location FS:[``Offset``].


Intrinsic Architecture
__readfsbyte x86
__readfsdword x86
__readfsqword x86
__readfsword x86

Header file <intrin.h>


These routines are available only as intrinsics.

END Microsoft Specific

See Also

__writefsbyte, __writefsdword, __writefsqword, __writefsword
Compiler Intrinsics