c - what is the unsigned datatype? -

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I've seen this unsigned "typeless" type for a while, but never Notice that for an explanation I think there is a compatible signed code here is an example: 

  static unsigned long next = 1; / * RAND_MAX is considered 32767 * / int minor (zero) {next = next * 1103515245 + 12345; Return (( unsigned) ) (next / 65536)% 32768); } Zero mysrand ( unsigned seeds ) {next = seeds; }

Whatever I have collected:
- On my system, sizeof (unsigned) = 4 (signal on a 32-bit unsigned int )

This can be used in the unsigned version as a short story for other types of foundations: 

  long end int = -42 signed; Printf ("% u \ n", (unsigned) i);

Is this ANSI C, or just a compiler extension?

unsigned for the actual unsigned int There is a short story, and is defined in standard C.


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