Is there byte data type in C

Question

If exists is there header file to include   This code give compilation error    include  lt iostream gt   using namespace std   int main         byte b   2       cout  lt  lt  b  lt  lt  endl       return 0

User · Answer

Yes  there is std  byte  defined in  lt cstddef gt     C   17 introduced it

User · Answer

No  but since C  11 there is  u int8 t

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There s also byte lite  compatible with C  98  C  11 and later

User · Answer

No there is no byte data type in C    However you could always include the bitset header from the standard library and create a typedef for byte   typedef bitset lt 8 gt  BYTE    NB  Given that WinDef h defines BYTE for windows code  you may want to use something other than BYTE if your intending to target Windows   Edit  In response to the suggestion that the answer is wrong   The answer is not wrong  The question was  Is there a  byte  data type in C      The answer was and is   No there is no byte data type in C    as answered    With regards to the suggested possible alternative for which it was asked why is the suggested alternative better   According to my copy of the C   standard  at the time    Objects declared as characters  char  shall be large enough to store any member of the implementations basic character set   3 9 1 1   I read that to suggest that if a compiler implementation requires 16 bits to store a member of the basic character set then the size of a char would be 16 bits  That today s compilers tend to use 8 bits for a char is one thing  but as far as I can tell there is certainly no guarantee that it will be 8 bits   On the other hand   the class template bitset lt N  describes an object that can store a sequence consisting of a fixed number of bits  N     20 5 1  In otherwords by specifying 8 as the template parameter I end up with an object that can store a sequence consisting of 8 bits    Whether or not the alternative is better to char  in the context of the program being written  therefore depends  as far as I understand  although I may be wrong  upon your compiler and your requirements at the time  It was therefore upto the individual writing the code  as far as I m concerned  to do determine whether the suggested alternative was appropriate for their requirements wants needs

User · Answer

namespace std        define std  byte   enum class byte   unsigned char          This if your C   version does not have std  byte will define a byte type in namespace std   Normally you don t want to add things to std  but in this case it is a standard thing that is missing  std  byte from the STL  does much more operations

User · Answer

Using C  11 there is a nice version for a manually defined byte type   enum class byte   std  uint8 t       That s at least what the GSL does    Starting with C  17  almost  this very version is defined in the standard as std  byte  thanks Neil Macintosh for both

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if you are using windows  in WinDef h you have   typedef unsigned char BYTE

User · Answer

No  there is no type called  byte  in C     What you want instead is unsigned char  or  if you need exactly 8 bits  uint8 t from  lt cstdint gt   since C  11    Note that char is not necessarily an accurate alternative  as it means signed char on some compilers and unsigned char on others

[c++] Is there 'byte' data type in C++?

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