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Use macro instead of a C++ iterator - for speed

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C++ iterators are bad.
This commit is contained in:
gingerBill
2025-09-10 20:11:36 +01:00
parent 228ddd6903
commit bc36ea4170
4 changed files with 21 additions and 28 deletions
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9
src/ptr_set.cpp
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@@ -16,6 +16,8 @@ template <typename T> gb_internal bool ptr_set_exists (PtrSet<T> *s, T ptr);
template <typename T> gb_internal void ptr_set_remove (PtrSet<T> *s, T ptr);
template <typename T> gb_internal void ptr_set_clear (PtrSet<T> *s);
#define FOR_PTR_SET(element, set_) for (auto *it = &(set_).keys[0], element = it ? *it : nullptr; (set_).keys != nullptr && it < &(set_).keys[(set_).capacity]; it++) if (element = *it, (*it != nullptr && *it != cast(void *)~(uintptr)(0ull)))
gb_internal gbAllocator ptr_set_allocator(void) {
return heap_allocator();
}
@@ -83,7 +85,7 @@ gb_internal gb_inline void ptr_set_grow(PtrSet<T> *old_set) {
PtrSet<T> new_set = {};
ptr_set_init(&new_set, gb_max(old_set->capacity<<1, 16));
for (T ptr : *old_set) {
FOR_PTR_SET(ptr, *old_set) {
bool was_new = ptr_set_update(&new_set, ptr);
GB_ASSERT(!was_new);
}
@@ -195,7 +197,7 @@ gb_internal gb_inline void ptr_set_clear(PtrSet<T> *s) {
gb_zero_size(s->keys, s->capacity*gb_size_of(T));
}
template <typename T>
/*template <typename T>
struct PtrSetIterator {
PtrSet<T> *set;
usize index;
@@ -239,7 +241,6 @@ gb_internal PtrSetIterator<T> begin(PtrSet<T> &set) noexcept {
template <typename T>
gb_internal PtrSetIterator<T> end(PtrSet<T> &set) noexcept {
return PtrSetIterator<T>{&set, set.capacity};
}
}*/
#define FOR_PTR_SET(index_, set_) for (usize index_ = 0; index_ < (set_).capacity; index_++) if ((set_).keys[index_] != nullptr && (set_).keys[index_] != cast(void *)~(uintptr)(0ull))