std::stackt...description(3)

📦 version 2024.07.05, in nixpkgs unstable, opensuse-leap 16.0

💅 NAME 💅

std::stacktrace_entry::description — bestie, this is literally the description function for a std::stacktrace_entry. Yes the name is the whole vibe. No notes. ✨

Quick housekeeping: this little page lives in the C++ Standard Libary manual (that spelling is theirs, not mine, iykyk 🫶).

✨ Synopsis ✨

std::string description() const;  (since C++23)

So what does it actually do? It returns a description of the evaluation represented by *this when things go right — and an empty string when things go wrong for any reason other than an allocation failure (like, say, when *this is empty 🙈).

🎀 Parameters 🎀

(none) — not a single one. She takes no arguments, she's low maintenance, she's iconic. 💅

🦋 Return value 🦋

On success: a description of the represented evaluation. Periodt. 💖

On failure that is not an allocation failure: an empty string. That's the whole deal.

🌸 Exceptions 🌸

Throws std::bad_alloc if memory for the internal data structures or for the resulting string can't be allocated. 😭 So like, an allocation failure inside the function is still a throw — don't get it twisted with the empty-string case above.

🔥 Notes 🔥

No custom allocator support for this function — and honestly? There's a whole reason:

  • the implementations usually require platform specific allocations, system calls and a lot of CPU intensive work 🧚
  • a custom allocator doesn't provide benefits for this function, because those platform specific operations take an order of magnitude more time than the allocation itself 💀

So yeah, the allocator would be doing cardio while the platform does the actual heavy lifting. Not worth it, bestie.

🌈 Example 🌈

This section is incomplete Reason: no example

Not me having zero example to show you 😭 it's giving "trust me bro". Empty section, but at least it's an honest one.

⭐ Category: ⭐

  • Todo no example

Okay that's the whole page, you ate that 🫶 This one came from http://cppreference.com, dated 2024.06.10 — go drink some water and go read your stack traces, main character 💜🎀

📦 where this page comes from