282     Py_ssize_t ascii_len, bin_len;  in binascii_a2b_uu_impl()  local
291     bin_len = (*ascii_data++ - ' ') & 077;  in binascii_a2b_uu_impl()
295     if ( (rv=PyBytes_FromStringAndSize(NULL, bin_len)) == NULL )  in binascii_a2b_uu_impl()
299     for( ; bin_len > 0 ; ascii_len--, ascii_data++ ) {  in binascii_a2b_uu_impl()
335             bin_len--;  in binascii_a2b_uu_impl()
380     Py_ssize_t bin_len, out_len;  in binascii_b2a_uu_impl()  local
385     bin_len = data->len;  in binascii_b2a_uu_impl()
386     if ( bin_len > 45 ) {  in binascii_b2a_uu_impl()
397     out_len = 2 + (bin_len + 2) / 3 * 4;  in binascii_b2a_uu_impl()
403     if (backtick && !bin_len)  in binascii_b2a_uu_impl()
406         *ascii_data++ = ' ' + (unsigned char)bin_len;  in binascii_b2a_uu_impl()
408     for( ; bin_len > 0 || leftbits != 0 ; bin_len--, bin_data++ ) {  in binascii_b2a_uu_impl()
410         if ( bin_len > 0 )              /* Data */  in binascii_b2a_uu_impl()
450     Py_ssize_t bin_len = ((ascii_len+3)/4)*3; /* Upper bound, corrected later */  in binascii_a2b_base64_impl()  local
453     unsigned char *bin_data = _PyBytesWriter_Alloc(&writer, bin_len);  in binascii_a2b_base64_impl()
554     Py_ssize_t bin_len, out_len;  in binascii_b2a_base64_impl()  local
559     bin_len = data->len;  in binascii_b2a_base64_impl()
562     assert(bin_len >= 0);  in binascii_b2a_base64_impl()
564     if ( bin_len > BASE64_MAXBIN ) {  in binascii_b2a_base64_impl()
576     out_len = bin_len*2 + 2;  in binascii_b2a_base64_impl()
583     for( ; bin_len > 0 ; bin_len--, bin_data++ ) {  in binascii_b2a_base64_impl()