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C

register


register keyword is used to define local variable. Local variable are stored in register instead of RAM. As variable is stored in register, the Maximum size of variable = Maximum Size of Register unary operator [&] is not associated with it because Value is not stored in RAM instead it is stored in Register. This is generally used for faster access. Common use is “Counter“

Syntax:
register Data_Type variable_name ;


Example:

int main()
{
  register int i = 10;
  int *a = &i;
  printf("%d", *a);
  getchar();
  return 0;
}


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