__GNU_CXX::_CASTER(3)

💖 NAME 💖

__gnu_cxx::_Caster< _ToType > — ok bestie, this is a lil' helper struct from the __gnu_cxx fam, and it's the whole reason containers can play nice with pointer types that are not your standard-issue pointers. It's giving backstage-pass energy for casting. 🎀

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✨ SYNOPSIS ✨

#include <cast.h>

🌸 Public Types 🌸

• typedef _ToType::element_type * type — literally just the pointer type that comes out of this whole casting situation. 🫶

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🦋 Detailed Description 🦋

template<typename _ToType>
    struct __gnu_cxx::_Caster< _ToType >

Okay so here's the tea, and I'm quoting the source directly because every word matters:

"These functions are here to allow containers to support non standard pointer types. For normal pointers, these resolve to the use of the standard cast operation. For other types the functions will perform the appropriate cast to/from the custom pointer class so long as that class meets the following conditions: 1) has a typedef element_type which names tehe type it points to. 2) has a get() const method which returns element_type*. 3) has a constructor which can take one element_type* argument. This type supports the semantics of the pointer cast operators (below.)"

Translation for the girlies who don't speak Doxygen: if you're using a regular pointer, no big deal, it just does the normal standard cast thing. 💅 But if you've got a custom pointer class and you want containers to be obsessed with it too, your class has to pass the vibe check. Three (3) requirements, no exceptions:

1. It has a typedef element_type that names the type it points to. (Yes, the original says "tehe" — we do not fix the typo, we respect the typo. 💀)
2. It has a get() const method that returns element_type*.
3. It has a constructor that can take one element_type* argument.

Slay those three conditions and this type supports the semantics of the pointer cast operators (below). Periodt. 👑

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🎀 Author 🎀

Generated automatically by Doxygen for libstdc++ from the source code. Not me writing a whole personality for an autogenerated page, but here we are. 🙈

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That's the whole thing, bestie! 💖 This absolute icon of a page comes to you from libstdc++ — no date on the tin, just the library name doing its main character thing, and it was cooked up automatically by Doxygen straight from the source code. Go forth and cast responsibly. 🌈💅✨