2024-07-02 19:40:52 +08:00

138 lines
3.0 KiB
C

#if !defined(SMALLMAP_T__HEADER) && !defined(SMALLMAP_T__SOURCE)
#include "pocketpy/common/vector.h"
#define SMALLMAP_T__HEADER
#define SMALLMAP_T__SOURCE
/* Input */
#define K int
#define V float
#define NAME c11_smallmap_i2f
#endif
/* Optional Input */
#ifndef less
#define less(a, b) ((a) < (b))
#endif
#ifndef equal
#define equal(a, b) ((a) == (b))
#endif
/* Temprary macros */
#define partial_less(a, b) less((a).key, (b))
#define CONCAT(A, B) CONCAT_(A, B)
#define CONCAT_(A, B) A##B
#define KV CONCAT(NAME, _KV)
#define METHOD(name) CONCAT(NAME, CONCAT(__, name))
#ifdef SMALLMAP_T__HEADER
/* Declaration */
typedef struct {
K key;
V value;
} KV;
typedef c11_vector NAME;
void METHOD(ctor)(NAME* self);
void METHOD(dtor)(NAME* self);
NAME* METHOD(new)();
void METHOD(delete)(NAME* self);
void METHOD(set)(NAME* self, K key, V value);
V* METHOD(try_get)(const NAME* self, K key);
V METHOD(get)(const NAME* self, K key, V default_value);
bool METHOD(contains)(const NAME* self, K key);
bool METHOD(del)(NAME* self, K key);
void METHOD(clear)(NAME* self);
#endif
#ifdef SMALLMAP_T__SOURCE
/* Implementation */
void METHOD(ctor)(NAME* self) {
c11_vector__ctor(self, sizeof(KV));
c11_vector__reserve(self, 4);
}
void METHOD(dtor)(NAME* self) {
c11_vector__dtor(self);
}
NAME* METHOD(new)() {
NAME* self = malloc(sizeof(NAME));
METHOD(ctor)(self);
return self;
}
void METHOD(delete)(NAME* self) {
METHOD(dtor)(self);
free(self);
}
void METHOD(set)(NAME* self, K key, V value) {
int index;
c11__lower_bound(KV, self->data, self->count, key, partial_less, &index);
if(index != self->count){
KV* it = c11__at(KV, self, index);
if(equal(it->key, key)){
it->value = value;
return;
}
}
KV kv = {key, value};
c11_vector__insert(KV, self, index, kv);
}
V* METHOD(try_get)(const NAME* self, K key) {
int index;
c11__lower_bound(KV, self->data, self->count, key, partial_less, &index);
if(index != self->count){
KV* it = c11__at(KV, self, index);
if(equal(it->key, key)) return &it->value;
}
return NULL;
}
V METHOD(get)(const NAME* self, K key, V default_value) {
V* p = METHOD(try_get)(self, key);
return p ? *p : default_value;
}
bool METHOD(contains)(const NAME* self, K key) {
return METHOD(try_get)(self, key) != NULL;
}
bool METHOD(del)(NAME* self, K key) {
int index;
c11__lower_bound(KV, self->data, self->count, key, partial_less, &index);
if(index != self->count){
KV* it = c11__at(KV, self, index);
if(equal(it->key, key)){
c11_vector__erase(KV, self, index);
return true;
}
}
return false;
}
void METHOD(clear)(NAME* self) {
c11_vector__clear(self);
}
#endif
/* Undefine all macros */
#undef KV
#undef METHOD
#undef CONCAT
#undef CONCAT_
#undef K
#undef V
#undef NAME
#undef less
#undef partial_less
#undef equal