Class: Integer

Inherits:
Object
  • Object
show all
Defined in:
(unknown)

Instance Method Summary collapse

Instance Method Details

#bencode ⇒ Object

Integer#bencode



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# File 'ext/b_encode/b_encode.c', line 48

static VALUE
rb_integer_bencode(VALUE rb_num) {
    long num = NUM2LONG(rb_num);
    int c = 0;
    if (num == 0) {
        c = 1;
    } else {
        if (num < 0)
            c++; // minus sign
        for (int n = labs(num); n > 0; c++)
            n /= 10;
    }

    // "i"<integer>"e"
    int strlen = c + 2;
    VALUE str = rb_str_new(NULL, strlen);
    char *ptr = RSTRING_PTR(str);

    ptr[0] = 'i';
    if (num == 0) {
        ptr[1] = '0';
    } else {
        if (num < 0) {
            ptr[1] = '-';
        }
        int i = 0;
        for (int n = labs(num); n > 0; n /= 10, i++)
            ptr[c - i] = (n % 10) + '0';
    }
    ptr[c + 1] = 'e';

    return str;
}