FastLED
3.10.9
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◆
reserve()
template<typename
Key
, typename T, typename
Hash
= Hash<Key>, typename KeyEqual = EqualTo<Key>, int INLINED_COUNT = FASTLED_HASHMAP_INLINED_COUNT>
void
fl::unordered_map
<
Key
, T,
Hash
, KeyEqual, INLINED_COUNT >::reserve
(
fl::size
n
)
inline
Definition at line
789
of file
unordered_map.h
.
789
{
790
// Calculate required buckets to hold n elements without exceeding load factor
791
float
max_lf
=
max_load_factor
();
792
if
(
max_lf
<= 0.0f) {
793
max_lf
= 0.7f;
// Default if somehow zero
794
}
795
// Required buckets = ceil(n / max_load_factor)
796
fl::size
required_buckets
=
static_cast<
fl::size
>
(
797
static_cast<
float
>
(
n
) /
max_lf
+ 0.999999f
// Add almost 1 to simulate ceil
798
);
799
if
(
required_buckets
>
_buckets
.size()) {
800
rehash
(
required_buckets
);
801
}
802
}
fl::unordered_map::max_load_factor
float max_load_factor() const FL_NO_EXCEPT
Definition
unordered_map.h:758
fl::unordered_map::_buckets
fl::vector_inlined< Entry, INLINED_COUNT > _buckets
Definition
unordered_map.h:1078
fl::unordered_map::rehash
void rehash(fl::size n) FL_NO_EXCEPT
Definition
unordered_map.h:774
fl::unordered_map
Definition
unordered_map.h:61
fl
unordered_map
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