what is the difference between uint16 t and unsigned short int incase of 64 bit processor

Question

I came to use a variable of type uint16 t  but am unable to use that data type because of my project limitations  Is it possible to unsigned short int instead of uint16 t  I don t know the difference between both of them  Could anybody clarify please

User · Answer

uint16 t is guaranteed to be a unsigned integer that is 16 bits large  unsigned short int is guaranteed to be a unsigned short integer  where short integer is defined by the compiler  and potentially compiler flags  you are currently using  For most compilers for x86 hardware a short integer is 16 bits large   Also note that per the ANSI C standard only the minimum size of 16 bits is defined  the maximum size is up to the developer of the compiler     Minimum Type Limits      Any compiler conforming to the Standard must also respect the   following limits with respect to the range of values any particular   type may accept  Note that these are lower limits  an implementation   is free to exceed any or all of these  Note also that the minimum   range for a char is dependent on whether or not a char is considered   to be signed or unsigned       Type    Minimum Range  signed char     -127 to  127 unsigned char      0 to 255 short int     -32767 to  32767 unsigned short int 0 to 65535

User · Answer

uint16 t is unsigned 16-bit integer   unsigned short int is unsigned short integer  but the size is implementation dependent  The standard only says it s at least 16-bit  i e  minimum value of UINT MAX is 65535   In practice  it usually is 16-bit  but you can t take that as guaranteed   Note     If you want a portable unsigned 16-bit integer  use uint16 t  inttypes h and stdint h are both introduced in C99  If you are using C89  define your own type  uint16 t may not be provided in certain implementation See reference below   but unsigned short int is always available    Reference  C11 ISO IEC 9899 201x    7 20 Integer types      For each type described herein that the implementation provides   shall declare that typedef name and define the associated macros  Conversely  for each type described herein that the implementation does not provide   shall not declare that typedef name nor shall it define the associated macros  An implementation shall provide those types described as       required        but need not provide any of the others  described as    optional

[c] what is the difference between uint16_t and unsigned short int incase of 64 bit processor?

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