How is a pointer stored in memory? -

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i working on os project , wondering how pointer stored in memory? understand pointer 4 bytes, how pointer spread amongst 4 bytes?

my issue is, trying store pointer 4 byte slot of memory. lets pointer 0x7fffffff. stored @ each of 4 bytes?

the way pointer stored same other multi-byte values. 4 bytes stored according endianness of system. let's address of 4 bytes below:

big endian (most significant byte first):

address       byte 0x1000        0x7f 0x1001        0xff 0x1002        0xff 0x1003        0xff

small endian (least significant byte first):

address       byte 0x1000        0xff 0x1001        0xff 0x1002        0xff 0x1003        0x7f

btw, 4 byte address 32-bit system. 64-bit system has 8 bytes addresses.

edit: reference each individual part of pointer, need use pointer. :) have:

int = 0; int *pi = &i; // pi == 0x7fffffff int **ppi = π // above example, int ppi == 0x1000

simple pointer arithmetic pointer each byte.


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