gflags ☆

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Description:
Library for processing command-line flags

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: c-plus-plus cli libraries development

Install: brew install gflags

About:
Gflags is a C++ library that provides a flexible framework for processing command-line arguments. It allows developers to define flags declaratively, which are then automatically parsed and validated. Its main value is simplifying command-line interface development by handling parsing, type conversion, and help message generation.

Key Features:

Supports standard C++ types and custom validators
Automatic generation of usage help text
Cross-platform compatibility (Linux, macOS, Windows)
Supports flag definitions from multiple source files

Use Cases:

Building command-line tools with complex argument parsing
Standardizing flag handling across large C++ codebases

Alternatives:

CLI11 – Modern C++11/14/17 interface with rich features, often preferred for new projects
Boost.Program_options – Part of Boost ecosystem, more heavyweight but feature-complete

Version History

Detected	Version	Rev	Change	Commit
Jan 10, 2025 12:08am		0	VERSION_BUMP	a2181a45