Boost C++ | Open Source Libraries

Open source C++ libraries: algorithms, data structures, concurrency, networking & more. Peer-reviewed, portable, battle-tested since 1998.

[Boost C++ | Open Source Libraries @Boost_Libraries]

Level up your C++ skills!
Sharpen your code with the latest from the Boost Libraries, powerful, peer-reviewed, and production-ready

New in Boost:
Bloom – High-performance Bloom filters → https://t.co/6RwXF9vxVi
Hash2 – Modern, flexible hashing library → https://t.co/AHvxeFSeQr
MQTT5 – Next-gen MQTT protocol support → https://t.co/jo1zzMKqiD

Explore all Boost libraries → https://t.co/JUOQnr8uhL

[Boost C++ | Open Source Libraries @Boost_Libraries]

A thread that outlives its process can turn shutdown into a crash waiting to happen. 💥

If a thread accesses an object after its lifetime has ended, even a carefully written application can fail catastrophically.

Concurrency design must account for the entire lifecycle: startup, execution, and shutdown.

Watch the short: https://t.co/Xrspd2E2Ck

#CPlusPlus #Multithreading #MemorySafety #SoftwareReliability

[Boost C++ | Open Source Libraries @Boost_Libraries]

Overload isn't an edge case. It's inevitable. ⚠️

In financial systems, market activity comes in bursts. When more work arrives than your system can handle, what happens next matters enormously.

The answer isn't to hope your infrastructure holds up. It's to define how the system should behave under pressure — before it happens.

Watch the short: https://t.co/M84IbDvTGB

#CPlusPlus #SystemDesign #ReliabilityEngineering #FinTech

[Boost C++ | Open Source Libraries @Boost_Libraries]

https://t.co/toYLIO505s

[Boost C++ | Open Source Libraries @Boost_Libraries]

std::variant<int, Config> v = Config(...);

If an emplace throws halfway, v holds neither an int nor a Config. valueless_by_exception() is a state you never put in the type, and std::visit throws bad_variant_access on it 🧵👇

[Boost C++ | Open Source Libraries @Boost_Libraries]

Boost Blueprint 138: Boost.Variant2

boost::variant2::variant is never valueless. Assignment and emplace provide the strong exception guarantee: if constructing the replacement throws, the original value remains intact

When all alternatives are nothrow move constructible, it uses single storage. Otherwise, it uses double storage to preserve the old value until the new one is ready. No heap allocation, no surprise empty state, no unexpected exceptions when visiting a valueless variant

Same interface as std::variant, from C++11

Level up your C++ architecture. Follow @Boost_Libraries for the #BoostBlueprint series

#cpp

[Boost C++ | Open Source Libraries @Boost_Libraries]

How you handle GitHub issues says a lot about your open-source community.

The goal isn't just closing tickets—it's creating a workflow where useful bug reports, feature requests, questions, and community feedback can all find the right place.

Mateusz Pusz shares practical strategies for scaling contributions without drowning in issue noise.

🎥 https://t.co/wq2di2Vy30

#CPP #OpenSource #GitHub #SoftwareEngineering

[Boost C++ | Open Source Libraries @Boost_Libraries]

CUDA C++ is an extension of standard C++ designed to express programs that can execute on the GPU.

The interesting part? Your application still has a CPU side, with standard C++ code, alongside GPU execution.

It's a bridge between two very different processor architectures.

https://t.co/9bgaa1PC6k

#CPlusPlus #CUDA #GPU #HPC

[Boost C++ | Open Source Libraries @Boost_Libraries]

https://t.co/9qDUOzRYpj

[Boost C++ | Open Source Libraries @Boost_Libraries]

C++20 added jthread, stop_token, latch, barrier and counting_semaphore

Still no thread-safe queue. The proposal dates to January 2012 and now targets C++29, so every codebase has a mutex, a std::queue and a condition_variable somebody wrote at 2am 🧵👇

[Boost C++ | Open Source Libraries @Boost_Libraries]

Boost Blueprint 137: Boost.Lockfree

boost::lockfree::queue is a multi-producer, multi-consumer queue built on atomic compare-and-swap. When the capacity is fixed, there is no mutex, so a thread that gets preempted can’t stall every other producer and consumer

spsc_queue is wait-free for the one producer, one consumer case, and stack gives you a lock-free LIFO

The trade: queue’s elements need a trivial destructor and assignment, and pop returns immediately when empty. For blocking handoff between fibers, Boost.Fiber’s buffered_channel supports ordinary value types

Level up your C++ architecture. Follow @Boost_Libraries for the #BoostBlueprint series

#cpp

[Boost C++ | Open Source Libraries @Boost_Libraries]

You can't make hardware infinitely faster. But you can make better use of it.

HPX uses asynchronous execution to help coordinate work across available resources, exposing more of the parallelism built into modern systems.

The result? Better resource utilization and a path toward more efficient high-performance applications.

Watch the short: https://t.co/sP57ruBWqu

#CPlusPlus #HPC #ParallelComputing #Performance

[Boost C++ | Open Source Libraries @Boost_Libraries]

Your function signature might look perfectly safe — but how you call that function can create a problem.

In C++, aliasing happens when multiple references or pointers access the same object. That can lead to lifetime bugs that aren't obvious from the function definition alone.

The danger may only appear at the point of use.

Watch the short: https://t.co/L4kqaejgkk

#CPlusPlus #SoftwareEngineering #MemorySafety #Cpp

[Boost C++ | Open Source Libraries @Boost_Libraries]

What happens when you add a C++ Profile?

You're not changing the meaning of your program.

Instead, you're restricting the set of programs that are accepted by imposing additional rules. If your code violates those rules, it can be rejected — while the runtime semantics remain unchanged.

That's an important distinction.

https://t.co/5ccs504PnR

#CPlusPlus #Cpp #Programming #TypeSafety

[Boost C++ | Open Source Libraries @Boost_Libraries]

One innocent-looking line of modern C++ can leave you with a dangling reference. ⚠️

Take a reference to an element in a std::vector, then call push_back(). If the vector reallocates, that reference can become invalid.

Memory safety isn't always about obviously dangerous code. Sometimes it's about how perfectly ordinary operations interact.

Watch the short: https://t.co/L4kqaejgkk

#CPlusPlus #Cpp #MemorySafety #Programming

[Boost C++ | Open Source Libraries @Boost_Libraries]

“Don't abstract for the sake of abstraction.”

Bjarne Stroustrup explains how to build C++ abstractions that are useful, efficient, and type-safe.

A short highlight from Using std::cpp 2026, supported by Boost Libraries.

Watch now: https://t.co/bNO1FwnoD4

#CPP #ModernCpp #Programming

[Boost C++ | Open Source Libraries @Boost_Libraries]

https://t.co/PeQWWgXURc

[Boost C++ | Open Source Libraries @Boost_Libraries]

On MSVC, std::deque<std::string> makes a separate heap allocation for every element

MSVC’s deque uses 16-byte blocks. Anything larger than 8 bytes, std::string included, gets a block to itself. Fixing it would break ABI, so it isn’t changing 🧵👇

[Boost C++ | Open Source Libraries @Boost_Libraries]

Boost Blueprint 136: Boost.Container

boost::container::deque lets you choose the block size as part of the type. Set block_size<64> and you get one allocation per 64 elements on every compiler and platform. You’re no longer stuck with a choice a standard library made decades ago

Mostly adding at the front and back? boost::container::devector keeps everything in one contiguous buffer. push_front and push_back are amortized O(1), and data() gives you a raw pointer, just like std::vector

Same code, same allocation pattern on GCC, Clang and MSVC

Level up your C++ architecture. Follow @Boost_Libraries for the #BoostBlueprint series

#cpp

[Boost C++ | Open Source Libraries @Boost_Libraries]

https://t.co/PeQWWgXURc

[Boost C++ | Open Source Libraries @Boost_Libraries]

Boost Blueprint 136: Boost.Container

boost::container::deque lets you choose the block size as part of the type. Set block_size<64> and you get one allocation per 64 elements on every compiler and platform. You’re no longer stuck with a choice a standard library made decades ago

Mostly adding at the front and back? boost::container::devector keeps everything in one contiguous buffer. push_front and push_back are amortized O(1), and data() gives you a raw pointer, just like std::vector

Same code, same allocation pattern on GCC, Clang and MSVC

Level up your C++ architecture. Follow @Boost_Libraries for the #BoostBlueprint series

#cpp