GNU cflow analyzes C source files and produces a graph charting the control flow of the program. It can output the graph in several styles and in either the POSIX format or in an extended GNU format. cflow also includes a major mode for Emacs for examining the flowcharts that it produces.

Artistic Style is a source code indenter, formatter, and beautifier for the C, C++, C++/CLI, Objective‑C, C#, and Java programming languages.

The Automatic Component Toolkit (ACT) is a code generator that takes an instance of an Interface Description Language (IDL) file and generates a thin C89-API, implementation stubs, and language bindings of your desired software component.

LCOV is an extension of gcov, a tool part of the GNU Binutils, which provides information about what parts of a program are actually executed (i.e., "covered") while running a particular test case. The extension consists of a set of Perl scripts which build on the textual gcov output to implement the following enhanced functionality such as HTML output.

RTags is a client/server application that indexes C/C++ code and keeps a persistent file-based database of references, declarations, definitions, symbolnames etc. There’s also limited support for ObjC/ObjC++. It allows you to find symbols by name (including nested class and namespace scope). Most importantly we give you proper follow-symbol and find-references support.

GNU GLOBAL is a source code tagging system that functions in the same way across a wide array of environments, such as different text editors, shells and web browsers. The resulting tags are useful for quickly moving around in a large, deeply nested project.

Sourcetrail is a free and open-source cross-platform source explorer that helps you get productive on unfamiliar source code. It includes support for C/C++, providing a graphical means for discovering symbols and their place in a project.

Beautify source code in many languages of the C family (C, C++, C#, Objective C, D, Java, Pawn, and Vala). Features:

• Indent and align code.

• Reformat comments (a little bit).

• Fix inter-character spacing.

• Add or remove parens / braces.

• Supports embedded SQL EXEC SQL stuff.

• Highly configurable - More than 600 configurable options.

The lcov-to-cobertura Python module converts code coverage report files in the lcov format to the XML format of Cobertura, a Java code coverage tool. It allows continuous integration servers like Jenkins to aggregate results and determine build stability.

cloc counts blank lines, comment lines, and physical lines of source code in many programming languages. Given two versions of a code base, cloc can compute differences in blank, comment, and source lines.

cloc contains code from David Wheeler's SLOCCount. Compared to SLOCCount, cloc can handle a greater variety of programming languages.

GNU complexity provides tools for finding procedures that are convoluted, overly long or otherwise difficult to understand. This may help in learning or reviewing unfamiliar code or perhaps highlighting your own code that seemed comprehensible when you wrote it.

SLOCCount is a set of the programs for counting source lines of code (SLOC) in large software systems. It can automatically identify and measure a wide range of programming languages. It automatically estimates the effort, time, and money it would take to develop the software, using the COCOMO model or user-provided parameters.

Kcov is a code coverage tester for compiled languages, Python and Bash. It was originally a fork of Bcov, but has since evolved to support a large feature set in addition to that of Bcov.

Kcov uses DWARF debugging information for compiled programs to make it possible to collect coverage information without special compiler switches.

make2graph creates a graph of dependencies from GNU Make. The output is a graphviz-dot file, a Gexf-XML file or a list of the deepest independent targets.

Xenon is a monitoring tool based on Radon. It monitors code complexity. Ideally, xenon is run every time code is committed. Through command line options, various thresholds can be set for the complexity of code. It will fail (i.e., it will exit with a non-zero exit code) when any of these requirements is not met.

This package provides a complete GCC tool chain for C/C++ development to be installed in user profiles. This includes GCC, as well as libc (headers and binaries, plus debugging symbols in the debug output), and Binutils. GCC is the GNU Compiler Collection.

This package provides a complete GCC tool chain for C/C++ development to be installed in user profiles. This includes GCC, as well as libc (headers and binaries, plus debugging symbols in the debug output), and Binutils. GCC is the GNU Compiler Collection.

This package provides a complete GCC tool chain for Fortran development to be installed in user profiles. This includes gfortran, as well as libc (headers and binaries, plus debugging symbols in the debug output), and binutils.

This package provides a complete GCC tool chain for C/C++ development to be installed in user profiles. This includes GCC, as well as libc (headers and binaries, plus debugging symbols in the debug output), and Binutils. GCC is the GNU Compiler Collection.

This package provides a complete GCC tool chain for D lang development to be installed in user profiles. This includes gdc, as well as libc (headers and binaries, plus debugging symbols in the debug output), and binutils.

Guile is the GNU Ubiquitous Intelligent Language for Extensions, the official extension language of the GNU system. It is an implementation of the Scheme language which can be easily embedded in other applications to provide a convenient means of extending the functionality of the application without requiring the source code to be rewritten.

This package provides a small sample of UTF-8 locales mostly useful in test environments.

The linker wrapper (or ld-wrapper) wraps the linker to add any missing -rpath flags, and to detect any misuse of libraries outside of the store.

This package provides a complete GCC tool chain for C/C++ development to be installed in user profiles. This includes GCC, as well as libc (headers and binaries, plus debugging symbols in the debug output), and Binutils. GCC is the GNU Compiler Collection.