std::ostrst...~ostrstream(3)

okay bestie, welcome to the C++ Standard Libary page for std::ostrst...~ostrstream(3) — we're talking about the std::ostrstream::~ostrstream destructor, and it's giving legacy-era energy 💅✨

💖 NAME 💖

std::ostrstream::~ostrstream — std::ostrstream::~ostrstream

🌸 Synopsis 🌸

virtual ~ostrstream();  (deprecated in C++98)
                        (removed in C++26)

This destructor destroys a std::ostrstream object, which also destroys the member std::strstreambuf, which may call the deallocation function if the underlying buffer was dynamically-allocated and not frozen. Cleanup when it happens? Iconic. 🫶

⚠️ Heads up: this is deprecated in C++98 and removed in C++26, so yeah, it's a whole historical artifact, not a main-character modern API.

🎀 Parameters 🎀

(none) — literally zero parameters, bestie. Not a single one. 💀

😭 Notes 😭

If str() was called on a dynamic ostrstream and freeze(false) was not called after that, this destructor leaks memory.

🚨 That is a real memory leak, not a vibe. Do not ignore the freeze(false), queen.

🧚 Example 🧚

// Run this code — go off, bestie:

#include <iostream>
#include <strstream>

int main()
{
    {
        std::ostrstream s; // dynamic buffer
        s << 1.23;
        std::cout << s.str() << '\n';
        s.freeze(false);
    } // destructor called, buffer deallocated

    {
        std::ostrstream s;
        s << 1.23;
        std::cout << s.str() << '\n';
//      buf.freeze(false);
    } // destructor called, memory leaked
}

🍓 Output: 🍓

1.23
1.23

mwah 💋 this page came from http://cppreference.com, dated 2024.06.10, and lives under std::ostrst...~ostrstream(3) — bye bestie, don't leak memory! 🫶✨