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ba_not

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ba_not: bit array manipulation

NAME

ba_and_ba, ba_clear, ba_clear_all, ba_copy, ba_create, ba_destroy, ba_not, ba_or_ba, ba_or_not_ba, ba_query, ba_resize, ba_set, ba_xor_ba - bit array manipulation

SYNOPSIS

#include <bitarr.h> Bitarr *ba_create(void); void ba_destroy(Bitarr *ba); Bitarr *ba_copy(const Bitarr *ba); int ba_resize(Bitarr *ba, size_t max_number); int ba_set(Bitarr *ba, unsigned number); int ba_clear(Bitarr *ba, unsigned number); void ba_clear_all(Bitarr *ba); int ba_query(Bitarr *ba, unsigned number); void ba_and_ba(Bitarr *ba1, const Bitarr *ba2); int ba_or_ba(Bitarr *ba1, const Bitarr *ba2); void ba_xor_ba(Bitarr *ba1, const Bitarr *ba2); void ba_or_not_ba(Bitarr *ba1, const Bitarr *ba2); void ba_not(Bitarr *ba);
DESCRIPTION
These functions operate on bit arrays. ba_create creates one and ba_destroy it. ba_copy makes a copy of one, and ba_resize changes its size. The bit arrays resize themselves automatically, but ba_resize can be used to get rid of extra memory allocated for the array, or to make sure there is enough memory allocated for the array (so that further operations are guaranteed to work). ba_set sets one element (bit) in the array to 1. ba_clear clears one element (sets it to 0), ba_clear_all clears all elements. ba_query returns the current value of an element. ba_and_ba, ba_or_ba, ba_xor_ba, and ba_or_ba do logical operations on two arrays. The result will be stored in the first one. ba_not will invert all elements in the array.
RETURNS
ba_create and ba_copy return a pointer to the new array, or NULL if they fail. Those that return an integer, return -1 for error, non- negative for success.

SEE ALSO

publib(3), iset(3)

AUTHOR

Lars Wirzenius BA_NOT(3)
 
 
 

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