Sunifdef is a C/C++ preprocessor conditional simplification tool that operates through the command line.
Sunifdef is a command-line tool designed to simplify preprocessor conditionals in C/C++ source code. It works by allowing users to select an interpretation of preprocessor symbols, such as #if and related directives. Sunifdef is a powerful successor to the FreeBSD 'unifdef' tool and is especially useful for developers working with constantly evolving products containing large code bases.
In environments where preprocessor conditionals are used to configure feature sets, APIs, or different releases, code bases steadily accumulate #ifdef pollution as obsolete configuration options become outdated. Sunifdef automates the recurrent task of purging redundant #if-logic from the code, enabling developers to focus on more important tasks.
The installation process is relatively straightforward. To install from source, download the tarball to a location under the home directory, extract the directory sunifdef from the tarball, and then run ./configure from the command console. If all is well, run make and then run su to become root.
Sunifdef also provides a pre-built executable that can be copied into /usr/local/bin as root. After setting permissions on /usr/local/bin/sunifdef to make it executable, copy man/sunifdef.1 from the sunifdef directory into /usr/local/man/man1.
Sunifdef's latest release features six bug fixes, five of which address longstanding defects in the tool's parsing and evaluation of integer constants. It provides robust parsing of hex, decimal, and octal numerals and arithmetic on them, although it still performs signed integer arithmetic and falls short of emulating the C preprocessor's arithmetic in limit cases, which is a yet-to-be-fixed defect.
Overall, Sunifdef is an incredibly useful tool for developers dealing with large code bases containing preprocessor conditionals that require frequent updates. Its ability to automate the purging of redundant logic can save developers significant amounts of time and energy, making it a worthwhile addition to any development environment.
In environments where preprocessor conditionals are used to configure feature sets, APIs, or different releases, code bases steadily accumulate #ifdef pollution as obsolete configuration options become outdated. Sunifdef automates the recurrent task of purging redundant #if-logic from the code, enabling developers to focus on more important tasks.
The installation process is relatively straightforward. To install from source, download the tarball to a location under the home directory, extract the directory sunifdef from the tarball, and then run ./configure from the command console. If all is well, run make and then run su to become root.
Sunifdef also provides a pre-built executable that can be copied into /usr/local/bin as root. After setting permissions on /usr/local/bin/sunifdef to make it executable, copy man/sunifdef.1 from the sunifdef directory into /usr/local/man/man1.
Sunifdef's latest release features six bug fixes, five of which address longstanding defects in the tool's parsing and evaluation of integer constants. It provides robust parsing of hex, decimal, and octal numerals and arithmetic on them, although it still performs signed integer arithmetic and falls short of emulating the C preprocessor's arithmetic in limit cases, which is a yet-to-be-fixed defect.
Overall, Sunifdef is an incredibly useful tool for developers dealing with large code bases containing preprocessor conditionals that require frequent updates. Its ability to automate the purging of redundant logic can save developers significant amounts of time and energy, making it a worthwhile addition to any development environment.
What's New
Version 3.1.3: N/A