- /* -n would overflow. Have sprintf deal with this. */
- SPRINTF_WGINT (buffer, n);
- p += strlen (buffer);
- return p;
+ /* n = -n would overflow because -n would evaluate to a
+ wgint value larger than WGINT_MAX. Need to make n
+ smaller and handle the last digit separately. */
+ int last_digit = n % 10;
+ /* The sign of n%10 is implementation-defined. */
+ if (last_digit < 0)
+ last_digit_char = '0' - last_digit;
+ else
+ last_digit_char = '0' + last_digit;
+ /* After n is made smaller, -n will not overflow. */
+ n /= 10;