관리-도구

편집 파일: _128x2.al

# NOTE: Derived from ../../blib/lib/NetAddr/IP/UtilPP.pm. # Changes made here will be lost when autosplit is run again. # See AutoSplit.pm. package NetAddr::IP::UtilPP; #line 145 "../../blib/lib/NetAddr/IP/UtilPP.pm (autosplit into ../../blib/lib/auto/NetAddr/IP/UtilPP/_128x2.al)" #=item * $rv = isIPv4($bits128); # #This function returns true if there are no on bits present in the IPv6 #portion of the 128 bit string and false otherwise. # #=cut # #sub xisIPv4 { # _deadlen(length($_[0])) # if length($_[0]) != 16; # return 0 if vec($_[0],0,32); # return 0 if vec($_[0],1,32); # return 0 if vec($_[0],2,32); # return 1; #} # multiply x 2 # sub _128x2 { my $inp = shift; $$inp[0] = ($$inp[0] << 1 & 0xffffffff) + (($$inp[1] & 0x80000000) ? 1:0); $$inp[1] = ($$inp[1] << 1 & 0xffffffff) + (($$inp[2] & 0x80000000) ? 1:0); $$inp[2] = ($$inp[2] << 1 & 0xffffffff) + (($$inp[3] & 0x80000000) ? 1:0); $$inp[3] = $$inp[3] << 1 & 0xffffffff; } # end of NetAddr::IP::UtilPP::_128x2 1;