A byte offset, typically used to index into a string or file, is a zero-based number of bytes. For example, in the string "this is a test", the byte offset of "this" is 0, of "is" is 5,"a" is 8, and "test" is 10.Note that this is not always the same as the "character offset". Some characters, such as Chinese ideograms, require two or more bytes to represent. Using ASCII characters only will ensure that the byte offset is always equal to the character offset.
For C++ you can do this:#define member_offset(Struct, Field) (&(reinterpret_cast(0)->member))because the byte offset is usually the structure address + offset, so by setting the address to 0, you get 0 + offset == offset.AnswerYou should the "offsetof" macro. This is a standard macro that has been a part of the C standard for 20 years now (it's part of C89 and C99), so all C and C++ compilers should support it.#include size_t offsetof(type, member);For example:struct s { int x, y; };offsetof(struct s, y);
I believe you meant difference between a bit and a byte. A byte is 8 bits.
There are two nibbles in a byte.
Eight bits are in one byte
1024 amos byte = 1 pectrol byte
Byte, since there are 8 bits in every byte
Yotto Byte
they are amounts of unit describing computer storage
8 bits are a byte
2 nibbles are in one byte
An octet is 8 bits, which forms a byte.