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Added set operations and example

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Leonardo committed 2019-03-27 14:34:24 -03:00
1 parent 8e3f2c45fa
commit d4a3f1c93c
2 files changed
+183 -4
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src/treeset.h
+95 -4
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@@ -558,10 +558,101 @@
} \
} \
\
FMOD SNAME *PFX##_union(SNAME *_set1_, SNAME *_set2_); \
FMOD SNAME *PFX##_intersection(SNAME *_set1_, SNAME *_set2_); \
FMOD SNAME *PFX##_difference(SNAME *_set1_, SNAME *_set2_); \
FMOD SNAME *PFX##_symmetric_difference(SNAME *_set1_, SNAME *_set2_); \
FMOD SNAME *PFX##_union(SNAME *_set1_, SNAME *_set2_) \
{ \
SNAME##_iter iter1, iter2; \
size_t index; \
V var; \
\
SNAME *_set_r_ = PFX##_new(_set1_->cmp); \
\
PFX##_iter_new(&iter1, _set1_); \
PFX##_iter_new(&iter2, _set2_); \
\
for (PFX##_iter_tostart(&iter1); !PFX##_iter_end(&iter1);) \
{ \
PFX##_iter_next(&iter1, &var, &index); \
PFX##_insert(_set_r_, var); \
} \
\
for (PFX##_iter_tostart(&iter2); !PFX##_iter_end(&iter2);) \
{ \
PFX##_iter_next(&iter2, &var, &index); \
PFX##_insert(_set_r_, var); \
} \
\
return _set_r_; \
} \
\
FMOD SNAME *PFX##_intersection(SNAME *_set1_, SNAME *_set2_) \
{ \
SNAME##_iter iter; \
size_t index; \
V var; \
\
SNAME *_set_r_ = PFX##_new(_set1_->cmp); \
SNAME *_set_A_ = _set1_->count < _set2_->count ? _set1_ : _set2_; \
SNAME *_set_B_ = _set_A_ == _set1_ ? _set2_ : _set1_; \
\
PFX##_iter_new(&iter, _set_A_); \
\
for (PFX##_iter_tostart(&iter); !PFX##_iter_end(&iter);) \
{ \
PFX##_iter_next(&iter, &var, &index); \
if (PFX##_get_node(_set_B_, var) != NULL) \
PFX##_insert(_set_r_, var); \
} \
\
return _set_r_; \
} \
\
FMOD SNAME *PFX##_difference(SNAME *_set1_, SNAME *_set2_) \
{ \
SNAME##_iter iter; \
size_t index; \
V var; \
\
SNAME *_set_r_ = PFX##_new(_set1_->cmp); \
\
PFX##_iter_new(&iter, _set1_); \
\
for (PFX##_iter_tostart(&iter); !PFX##_iter_end(&iter);) \
{ \
PFX##_iter_next(&iter, &var, &index); \
if (PFX##_get_node(_set2_, var) == NULL) \
PFX##_insert(_set_r_, var); \
} \
\
return _set_r_; \
} \
\
FMOD SNAME *PFX##_symmetric_difference(SNAME *_set1_, SNAME *_set2_) \
{ \
SNAME##_iter iter1, iter2; \
size_t index; \
V var; \
\
SNAME *_set_r_ = PFX##_new(_set1_->cmp); \
\
PFX##_iter_new(&iter1, _set1_); \
PFX##_iter_new(&iter2, _set2_); \
\
for (PFX##_iter_tostart(&iter1); !PFX##_iter_end(&iter1);) \
{ \
PFX##_iter_next(&iter1, &var, &index); \
if (PFX##_get_node(_set2_, var) == NULL) \
PFX##_insert(_set_r_, var); \
} \
\
for (PFX##_iter_tostart(&iter2); !PFX##_iter_end(&iter2);) \
{ \
PFX##_iter_next(&iter2, &var, &index); \
if (PFX##_get_node(_set1_, var) == NULL) \
PFX##_insert(_set_r_, var); \
} \
\
return _set_r_; \
} \
\
FMOD void PFX##_iter_new(SNAME##_iter *iter, SNAME *target) \
{ \