Ecosyste.ms: Packages
An open API service providing package, version and dependency metadata of many open source software ecosystems and registries.
vcpkg.io "observer-pattern" keyword
eventpp 0.1.3
C++ library for event dispatcher and callback list2 versions - Latest release: 7 months ago - 2 dependent repositories - 902 stars on GitHub
reactiveplusplus 2.0.0
ReactivePlusPlus is reactive programming library for C++ language3 versions - Latest release: 2 months ago - 152 stars on GitHub