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xor_bits
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Text File
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2001-04-06
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761b
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23 lines
SYNOPSIS
string xor_bits (string str1, string str2)
DESTRIPTION
<str1> and <str2> are both bitstrings. The result of the function
is a bitstring with the binary-xor of <str1> and <str2>,
ie. a string in which a bit is set only if the corresponding
bits in either <str1> or <str2> (but not both) is set.
EXAMPLES
string s1, s2, s3;
s1 = set_bit("", 3); s1 = set_bit(s1, 15); -> s1 is "( ("
s2 = set_bit("", 3); s2 = set_bit(s2, 4); -> s2 is "8"
s3 = xor_bits(s1, s2);
-> s3 is now "0 (", ie. a bitstring with bits 4 and 15 set.
SEE ALSO
clear_bit(E), set_bit(E), test_bit(E), next_bit(E), last_bit(E),
count_bits(E), and_bits(E), or_bits(E), invert_bits(E)