sm64coopdx/data/dynos_cmap.cpp

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#include <map>
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#include <cstdint>
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#include <cstddef>
typedef std::map<int64_t, void*> Map;
struct MapIter {
Map* map;
Map::iterator itr;
};
extern "C" {
void* hmap_create() {
return reinterpret_cast<void*> (new Map());
}
void* hmap_get(void* map, int64_t k) {
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if (!map) { return NULL; }
Map* m = reinterpret_cast<Map*> (map);
Map::iterator pos = m->find(k);
if (pos == m->end()) {
return NULL;
} else {
return pos->second;
}
}
void hmap_put(void* map, int64_t k, void* v) {
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if (!map) { return; }
Map* m = reinterpret_cast<Map*> (map);
if (m->count(k) > 0) {
m->erase(k);
}
m->insert(std::pair<int64_t, void*>(k, v));
}
void hmap_del(void* map, int64_t k) {
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if (!map) { return; }
Map* m = reinterpret_cast<Map*> (map);
m->erase(k);
}
void hmap_clear(void* map) {
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if (!map) { return; }
Map* m = reinterpret_cast<Map*> (map);
m->clear();
}
size_t hmap_len(void* map) {
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if (!map) { return 0; }
Map* m = reinterpret_cast<Map*> (map);
return m->size();
}
void* hmap_iter(void* map) {
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if (!map) { return nullptr; }
auto iter = new MapIter();
Map* m = reinterpret_cast<Map*> (map);
iter->map = m;
return reinterpret_cast<void*> (iter);
}
void* hmap_begin(void* iter) {
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if (!iter) { return nullptr; }
MapIter* i = reinterpret_cast<MapIter*> (iter);
i->itr = i->map->begin();
if (i->itr == i->map->end()) {
return NULL;
}
return i->itr->second;
}
void* hmap_next(void* iter) {
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if (!iter) { return nullptr; }
MapIter* i = reinterpret_cast<MapIter*> (iter);
i->itr++;
if (i->itr == i->map->end()) {
return NULL;
}
return i->itr->second;
}
} // extern "C"