/doc/efun/set_bit

SYNOPSIS

string set_bit(string str, int n)

DESCRIPTION

Return the new string where bit n is set in string str. Note that the old string str is not modified.

Each character contains 6 bits. So you can store a value between 0 and 63 in one character (2^6=64). Starting character is the blank " " which has the value 0. The first charcter in the string is the one with the lowest bits (0-5).

The new string will automatically be extended if needed.

EXAMPLE

	string s;
	s=set_bit("?",5);
	Because "?" has a valueof 31 the variable s will now contain
	the charcter "_" wich is equal to 63 (31+2^5=63).
	string s;
	s=set_bit("78",3);
	s=set_bit(s,8);
	s will now contain the string "?<".

SEE ALSO

clear_bit

test_bit

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