zeromq/cppzmq

Header-only C++ binding for libzmq

Stars: 2.3k
Forks: 798
Open beginner issues: 1
Indexed issues: 119

Dominant language: C++
License: MIT
Last GitHub push: May 26, 2026
Latest indexed: Sep 21, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

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Behavior of message_t::copy is unclear Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

zeromq/cppzmq#688 · 1 comment · Opened May 30, 2026
Add CURVE default keys constants Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

zeromq/cppzmq#675 · Opened Jan 27, 2026
Expected timeline for 4.11? Open

Difficulty 1/5 Under an hour Newbie friendliness 15/100

zeromq/cppzmq#661 · 2 comments · 2 reactions · Opened Jun 5, 2025
Dropped first frame on failed send Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

zeromq/cppzmq#659 · 3 comments · Opened May 10, 2025
'message_t' is deprecated: from 4.7.0 Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

zeromq/cppzmq#647 · 2 comments · Opened Feb 11, 2025
Cannot build with MSYS2, possibly due to incorrect find of libzmq Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

zeromq/cppzmq#645 · 1 comment · Opened Nov 20, 2024
std::move of zmq::message_t not behaving as expected Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

zeromq/cppzmq#644 · 1 comment · Opened Nov 18, 2024
multipart_t send/recv inconsistent with socket_t Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

zeromq/cppzmq#643 · 1 comment · Opened Oct 22, 2024
sockopt::rcvtimeo argument too small Open

Difficulty 5/5 Over a week Newbie friendliness 28/100

zeromq/cppzmq#642 · 1 comment · Opened Oct 22, 2024
Unable to Include cppzmq Library in OMNeT++ Project Makefile Description Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

zeromq/cppzmq#640 · Opened May 6, 2024
Dealer socket, memory leak issue: The file descriptor doesn't get delete it. Too many open files descriptor Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

zeromq/cppzmq#639 · Opened May 2, 2024
Deleted copy constructor creates problems with keeping frames Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

zeromq/cppzmq#638 · 1 comment · Opened Apr 26, 2024
Should multipart_t documentation be updated to primarily use add to avoid reverse of traditional order? Open

Difficulty 2/5 1-3 hours Newbie friendliness 38/100

zeromq/cppzmq#637 · 1 comment · Opened Apr 24, 2024
cppzmq.pc still links the binaries with the shared library libzmq.so when the --static flag os given Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

zeromq/cppzmq#636 · 1 reaction · Opened Apr 18, 2024
Tests fail to compile: fatal error: 'catch2/catch.hpp' file not found Open

Difficulty 2/5 1-3 hours Newbie friendliness 30/100

zeromq/cppzmq#635 · 1 comment · Opened Apr 16, 2024
Could not run cppzmq for UWP(c++ / CX) apps or (c++/ winrt) apps on Visual Studio 2022 Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

zeromq/cppzmq#630 · Opened Feb 19, 2024
Example doesn't compile (MacOS) Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

zeromq/cppzmq#628 · 1 comment · Opened Feb 12, 2024
Specialization of struct std::hash in different namespace Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

zeromq/cppzmq#626 · Opened Jan 26, 2024
ZMQ_HELLO_MSG doesn't work Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

zeromq/cppzmq#625 · Opened Dec 13, 2023
Radio Dish UDP cppzmq Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

zeromq/cppzmq#624 · 2 comments · Opened Dec 6, 2023
zmq 4.3.5 installed with vcpkg VC2015 Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

zeromq/cppzmq#621 · 1 comment · Opened Oct 16, 2023
Ubuntu package doesn't seem to include the CMake configs Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

zeromq/cppzmq#620 · 1 reaction · Opened Oct 15, 2023
monitor_t is not (easily) usable in composition. Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

zeromq/cppzmq#619 · 1 comment · 1 reaction · Opened Sep 28, 2023
How to get client IP when in "REQ/REP" mode？ Open

Difficulty 1/5 Under an hour Newbie friendliness 25/100

zeromq/cppzmq#618 · 1 comment · Opened Sep 17, 2023
Does not build on Mac M1 Silicon Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

zeromq/cppzmq#617 · 1 comment · Opened Sep 8, 2023
epgm subscriber cannot receive message Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

zeromq/cppzmq#615 · 2 comments · Opened Sep 5, 2023
zero-copy message cannot send same amount of transmission as copy message and ZMQbg/IO/0" received signal SIGABRT Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

zeromq/cppzmq#614 · 6 comments · Opened Sep 4, 2023
Support for string_view Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

zeromq/cppzmq#611 · 2 comments · Opened Aug 17, 2023
Occasional crash in `KERNELBASE.dll` Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

zeromq/cppzmq#609 · 1 comment · Opened Jul 23, 2023
Polling on file descriptors / external sockets not supported in active_poller Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

zeromq/cppzmq#605 · 3 comments · Opened Jul 19, 2023
confused. "header only" but requires build? Open

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

zeromq/cppzmq#604 · 2 comments · Opened Jul 15, 2023
ZeroMQ connection stays in SYN_SENT state after listener changes IP Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

zeromq/cppzmq#603 · 1 comment · Opened Jul 14, 2023
How to build cppzmq in an air-gapped environment? Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

zeromq/cppzmq#602 · 1 comment · Opened Jul 14, 2023
what is the plan of poller_t? Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

zeromq/cppzmq#601 · 1 comment · Opened Jul 10, 2023
function with zmq::recv_flags::none show it have suitable impleiment? Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

zeromq/cppzmq#600 · 1 comment · Opened Jul 6, 2023
When I use this class to define an object in the heap area, calling Send is non-blocking, and the defined object is blocking in the stack area Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

zeromq/cppzmq#592 · 3 comments · Opened Apr 6, 2023
Assertion failed: socket_type >= 0 && socket_type < (int) names_count (src/mechanism.cpp:110) Open

Difficulty 4/5 3-5 days Newbie friendliness 28/100

zeromq/cppzmq#588 · 3 comments · Opened Jan 9, 2023
Overly Aggressive Deprecation Warnings Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

zeromq/cppzmq#586 · 1 comment · Opened Nov 28, 2022
Compile Error on Apple M1 Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

zeromq/cppzmq#583 · 3 comments · Opened Oct 29, 2022
Crashes under Wine Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

zeromq/cppzmq#582 · 1 comment · Opened Oct 24, 2022
`CPPZMQ_BUILD_TESTS=OFF` incompatible with `ctest` when using as subproject Open

Difficulty 3/5 1-2 days Newbie friendliness 30/100

zeromq/cppzmq#567 · 1 comment · Opened Aug 11, 2022
Undefined references when using libzmq.so.5.2.4 Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

zeromq/cppzmq#561 · 3 comments · Opened Jul 1, 2022
Can't communicate using IPC between Parent Process & Child Process. Open

Difficulty 4/5 3-5 days Newbie friendliness 28/100

zeromq/cppzmq#560 · 3 comments · Opened Jun 23, 2022
Cannot be build without Git Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

zeromq/cppzmq#554 · 1 comment · Opened Apr 21, 2022
makefile doesn't exist Open

Difficulty 3/5 1-2 days Newbie friendliness 20/100

zeromq/cppzmq#550 · 6 comments · Opened Mar 27, 2022
ZMQ_RADIO "udp://*:6600", The protocol is not compatible with the socket type Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

zeromq/cppzmq#549 · 1 comment · Opened Mar 18, 2022
when i send it will show "Resource temporarily unavailable" Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

zeromq/cppzmq#548 · 3 comments · Opened Mar 13, 2022
receive nothing when using recv_multipart compiled debug， but release version is ok Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

zeromq/cppzmq#547 · Opened Mar 4, 2022
mingw cross compilation fails Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

zeromq/cppzmq#542 · 2 comments · Opened Feb 3, 2022
question about the rep-router-rep Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

zeromq/cppzmq#540 · 5 comments · Opened Jan 21, 2022

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