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






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Convert string to long integer: how to use strtol


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

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








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