header-only topic
dynamic_bitset
Simple Useful Libraries: C++17/20 header-only dynamic bitset
nytl
Modern C++ generic header-only template library.
nmd
set of single-header libraries for C/C++. The code is far from finished but some parts are quite usable.
graphlite
A lightweight C++ graph library
ORM-Lite
Header-Only, Strong-Typed, Compile-time Object Relation Mapping (ORM) in Modern C++ :-)
oof
Convenient, high-performance RGB color and position control for console output
bitflags
Single-header header-only C++11 / C++14 / C++17 library for easily managing set of auto-generated type-safe flags.
booleval
Header-only C++17 library for evaluating logical expressions.