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Make the default map size smaller.
256 is pretty big. Now, set_t is always 32 bytes, giving 64 members for 64 bit machines and (probably) 128 members for 32 bit machines.
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1 changed files with 10 additions and 5 deletions
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@ -36,6 +36,11 @@
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*/
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//@{
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#define DEFMAP_SIZE ((32 - sizeof (struct set_s *) \
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- sizeof (unsigned *) \
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- sizeof (int) - sizeof (unsigned))\
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/ sizeof (unsigned))
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/** Represent a set using a bitmap.
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When \a inverted is zero, ones in the bitmap represent members, but when
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@ -44,11 +49,11 @@
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set_t as a black box.
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*/
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typedef struct set_s {
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struct set_s *next; ///< private. for ALLOC
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int inverted; ///< if true, 0 indicates membership
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unsigned *map; ///< bitmap of set members
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unsigned size; ///< number of representable members
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unsigned defmap[8]; ///< backing store for small sets
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struct set_s *next; ///< private. for ALLOC
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unsigned *map; ///< bitmap of set members
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int inverted; ///< if true, 0 indicates membership
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unsigned size; ///< number of representable members
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unsigned defmap[DEFMAP_SIZE];///< backing store for small sets
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} set_t;
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/** Represent the state of a scan through a set.
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