if (string == 0 || *string == '\0')
return (-1);
- if (!history_length || ((i == history_length) && !reverse))
+ if (!history_length || ((i >= history_length) && !reverse))
return (-1);
- if (reverse && (i == history_length))
- i--;
+ if (reverse && (i >= history_length))
+ i = history_length - 1;
#define NEXT_LINE() do { if (reverse) i--; else i++; } while (0)