tclap ☆

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Description:
Templatized C++ command-line parser library

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: c++ library cli command-line header-only

Install: brew install tclap

About:
Tclap is a lightweight, templatized C++ library for parsing command-line arguments. It provides an easy-to-use API for defining flags, arguments, and switches without external dependencies. The library is header-only, making it simple to integrate into any C++ project.

Key Features:

Header-only library, no compilation required
Type-safe argument parsing using C++ templates
Supports advanced features like argument constraints and multi-args
Generates standard help and usage output automatically

Use Cases:

Adding command-line parsing to C++ applications
Building custom developer tools and utilities
Prototyping CLI interfaces without heavy dependencies

Alternatives:

Boost.Program_options – More comprehensive but requires the heavy Boost library dependency
CLI11 – Modern C++11/14/17 interface, similar header-only model with different API style

Version History

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