Re: sizeof(dev_t)

[SandeepKsinha <sandeepksinha@xxxxxxxxx>]

ail.com> wrote:

FYI

/usr/include/bits/types.h

/* Fixed-size types, underlying types depend on word size and compiler.  */
typedef signed char __int8_t;
typedef unsigned char __uint8_t;
typedef signed short int __int16_t;
typedef unsigned short int __uint16_t;
typedef signed int __int32_t;
typedef unsigned int __uint32_t;
#if __WORDSIZE == 64
typedef signed long int __int64_t;
typedef unsigned long int __uint64_t;
#elif defined __GLIBC_HAVE_LONG_LONG

__extension__ typedef signed long long int __int64_t;
__extension__ typedef unsigned long long int __uint64_t;

#endif


#if __WORDSIZE == 32
# define __SQUAD_TYPE           __quad_t
# define __UQUAD_TYPE           __u_quad_t
# define __SWORD_TYPE           int
# define __UWORD_TYPE           unsigned int
# define __SLONG32_TYPE         long int
# define __ULONG32_TYPE         unsigned long int
# define __S64_TYPE             __quad_t
# define __U64_TYPE             __u_quad_t
/* We want __extension__ before typedef's that use nonstandard base types
  such as `long long' in C89 mode.  */

# define __STD_TYPE             __extension__ typedef

#elif __WORDSIZE == 64
# define __SQUAD_TYPE           long int
# define __UQUAD_TYPE           unsigned long int
# define __SWORD_TYPE           long int
# define __UWORD_TYPE           unsigned long int
# define __SLONG32_TYPE         int

Thats what I meant? I mean where can you see the size of dev_t to be mapping to unsigned long.
Its 64 bit on both, with WORDSIZE ==32 and 64.


Regards,
Sandeep.






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