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To provide simulation software in the field of TCAD with the utmost flexibility regarding generation and adaptation of meshes, a generic and high-quality meshing library, ViennaMesh, has been developed. The library is coded in C++ and utilizes modern programming techniques to wrap tasks, like mesh generation and mesh adaptation, into functional objects, which can then be concatenated to form the desired meshing process. Additionally, a meta-selection environment provides the ability to select a mesh generation kernel based on properties already defined at compile time. Code examples are depicted and briefly discussed. Moreover, several enhancements to existing mesh adaptation methods have been made, which are demonstrated based on meshes provided by industrial partners.