Convert string to unsigned long integer: how to use strtoul : String Convert « String « C / ANSI-C






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Convert string to unsigned long integer: how to use strtoul


#include <stdio.h>
#include <stdlib.h>

int main ()
{
  char str[256];
  char *p;
  unsigned long ul;
  
  printf ("Enter an integer value: ");
  
  gets (str);
  
  ul = strtoul (str, &p, 0);
  
  printf ("Value entered: %lu. Its double: %lu\n", ul, ul * 2);
  
  return 0;
}








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