__GNU_PBDS::HASH_EXPONENTIAL_SIZE_POLICY(3)

✨ NAME ✨

__gnu_pbds::hash_exponential_size_policy< Size_Type > — it's a size policy bestie, and its sequence of sizes forms an exponential sequence (typically powers of 2.

(Yes we're ending on a dangling paren, that's the source's whole vibe, we respect it 💅)

Oh and hey — this page is from the Library Functions Manual, section 3, in case you were wondering where you wandered into. 🦋

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🎀 SYNOPSIS 🎀

#include <hash_policy.hpp>

Inherited by __gnu_pbds::hash_standard_resize_policy< Size_Policy, Trigger_Policy, External_Size_Access, Size_Type >. Not me inheriting like it's a family heirloom 💖

🌸 Public Types

• size_type — it's a typedef of Size_Type, so it's giving exactly what you'd expect.

typedef Size_Type size_type

💫 Public Member Functions

• hash_exponential_size_policy (size_type start_size=8, size_type grow_factor=2) — okay so this is the default constructor, OR the constructor that takes a start_size, OR the constructor that takes a start size and a grow_factor. The policy will use the sequence of sizes start_size, start_size* grow_factor, start_size* grow_factor^2, ... 🫶
• void swap (hash_exponential_size_policy< Size_Type > &other) — swaps with other, that's it, that's the whole thing.

🧚 Protected Member Functions

• size_type get_nearest_larger_size (size_type size) const — no cap, it does exactly what it says on the tin. ✨
• size_type get_nearest_smaller_size (size_type size) const — the smaller twin of the above. 💜

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💖 Detailed Description 💖

template<typename Size_Type = std::size_t>
class __gnu_pbds::hash_exponential_size_policy< Size_Type >

A size policy whose sequence of sizes form an exponential sequence (typically powers of 2.

That's the whole detailed description, she's concise, she's iconic, she ate. 👑

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🌈 Constructor & Destructor Documentation 🌈

template<typename Size_Type>
__gnu_pbds::hash_exponential_size_policy< Size_Type >::
  hash_exponential_size_policy (size_type start_size = 8,
                                size_type grow_factor = 2)

So listen bestie: this is the default constructor, or the constructor taking a start_size, or the constructor taking a start size and a grow_factor. The policy will use the sequence of sizes

start_size, start_size* grow_factor, start_size* grow_factor^2, ...

and that ... is doing a lot of heavy lifting, fr fr. 😭 Note the defaults: start_size = 8, grow_factor = 2. 🌸

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🦋 Author 🦋

Generated automatically by Doxygen for libstdc++ from the source code. Not a human author, just a robot doing its little thing, and honestly? Slay. 🤖✨

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That's the page, gorgeous. Everything above is straight from the libstdc++ docs — same options, same signatures, same numbers, just with the personality it deserved. 💖🎀🫶

bye bestie, go resize something exponentially 💅🌈⭐