2876     var utf16buf = new Array(len*2);
2881         if (c < 0x80) { utf16buf[out++] = c; continue; }  field
2885         if (c_len > 4) { utf16buf[out++] = 0xfffd; i += c_len-1; continue; }  field
2896         if (c_len > 1) { utf16buf[out++] = 0xfffd; continue; }  field
2899             utf16buf[out++] = c;  field
2902             utf16buf[out++] = 0xd800 | ((c >> 10) & 0x3ff);
2903             utf16buf[out++] = 0xdc00 | (c & 0x3ff);
2908     if (utf16buf.length !== out) {
2909         if(utf16buf.subarray) {
2910             utf16buf = utf16buf.subarray(0, out);
2912             utf16buf.length = out;
2917     return utils.applyFromCharCode(utf16buf);
5649   var utf16buf = new Array(len * 2);
5654     if (c < 0x80) { utf16buf[out++] = c; continue; }  field
5658     if (c_len > 4) { utf16buf[out++] = 0xfffd; i += c_len - 1; continue; }  field
5669     if (c_len > 1) { utf16buf[out++] = 0xfffd; continue; }  field
5672       utf16buf[out++] = c;  field
5675       utf16buf[out++] = 0xd800 | ((c >> 10) & 0x3ff);
5676       utf16buf[out++] = 0xdc00 | (c & 0x3ff);
5680   return buf2binstring(utf16buf, out);