Function ink_small_itoa

include/tscore/ink_string.h:302–344

Specialized "itoa", that is optimized for small integers, and use snprintf() otherwise. On error, we'll return 0, and nothing is written to the buffer. TODO: Do these really need to be inline?

// On error, we'll return 0, and nothing is written to the buffer.
// TODO: Do these really need to be inline?
inline int
ink_small_itoa(int val, char *buf, int buf_len)
{
  ink_assert(buf_len > 5);
  ink_assert((val >= 0) && (val < 100000));

  if (val < 10) { // 0 - 9
    buf[0] = '0' + val;
    return 1;
  } else if (val < 100) { // 10 - 99
    buf[1]  = '0' + (val % 10);
    val    /= 10;
    buf[0]  = '0' + (val % 10);
    return 2;
  } else if (val < 1000) { // 100 - 999
    buf[2]  = '0' + (val % 10);
    val    /= 10;
    buf[1]  = '0' + (val % 10);
    val    /= 10;
    buf[0]  = '0' + (val % 10);
    return 3;
  } else if (val < 10000) { // 1000 - 9999
    buf[3]  = '0' + (val % 10);
    val    /= 10;
    buf[2]  = '0' + (val % 10);
    val    /= 10;
    buf[1]  = '0' + (val % 10);
    val    /= 10;
    buf[0]  = '0' + (val % 10);
    return 4;
  } else { // 10000 - 99999
    buf[4]  = '0' + (val % 10);
    val    /= 10;
    buf[3]  = '0' + (val % 10);
    val    /= 10;
    buf[2]  = '0' + (val % 10);
    val    /= 10;
    buf[1]  = '0' + (val % 10);
    val    /= 10;
    buf[0]  = '0' + (val % 10);
    return 5;
  }
}

inline int
ink_fast_itoa(int32_t val, char *buf, int buf_len)