Array2D.h - A simple 2D array on top of a 1D vector container (std::vector etc).
BitWriter.h - Write individual bits to memory.
CVar.h - OLEVariant-like untyped variable.
DynamicLibrary.h - Cross-platform dynamic link libraries (.dll/.so).
Macros.h - Useful utility macros.
Ptr.h - Minimalistic intrusive smartpointer.
PtrUtils.h - Intrusive smartpointer utils (depends on the header).
Utils.h - Various utility functions.
Geometry.h - Geometry utilities
Math.h - Math utilities
Matrix.h - mat3/mat4
Plane.h - plane3
Ray.h - ray3
Vector.h - vec2/vec3/vec4