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