/******************************************
* Conversion routine                      *
* --> pStr, pointer to AsciiZ string      *
* --> pResult - pointer to signed result  *
* <-- returns: 0 if conversion succeed    *
    position of incorrect digit otherwise *
******************************************/
U8 StrToInt(U8 *pStr, S32 *pResult)
{
    S32 temp = 0;
    U8 sign = 0;

    if (!(pStr && pResult))
        return 0xFF; // invalid pointer
    else
    {
        U8 ch;
        U8 digit = 0;
        if (*pStr == '-')
        {
            sign = TRUE;
            pStr++;
        }
        while(*pStr)
        {
            ch = *pStr++;
            digit += 1;
            if (digit > 10)
            { // the string is too long to be U32/S32 value
                return digit;
            }
            temp *= 10;
            if ( (ch >= 0x30) && (ch < 0x3A) )
            {
                temp += ch - 0x30;
            }
            else // conversion error
            { // return problematic digit num from 1
                return digit;
            }
        }
    }
    if (sign)
        *pResult = -temp;
    else
        *pResult = temp;
    return 0;
}

void f1 (void *);
void f3 (void *, void (*)(void *));
void f2 (void *);

int foo (void *a, int b)
{
  if (!b)
    {
      f1 (a);
      return 1;
    }
  if (b)
    {
      void bar (void *c)
      {
          if (c == a)
            f2 (c);
      }
      f3 (a, bar);
    }
  return 0;
}