The library contains a set of auxiliary functions.
https://src.libcode.org/download/faux

Serj Kalichev 640a980260 faux.conv: boolean to string function %!s(int64=3) %!d(string=hai) anos
docs 7c42adb687 docs: Docs for testc_helpers (in English) %!s(int64=4) %!d(string=hai) anos
faux 640a980260 faux.conv: boolean to string function %!s(int64=3) %!d(string=hai) anos
libc 1a733d2882 Add internal getopt implamentation. BSD version %!s(int64=11) %!d(string=hai) anos
m4 1431c5f66a faux.net: faux_send(), iovec, pthread lib %!s(int64=4) %!d(string=hai) anos
testc 3f040f7e4e testc: Print test's PID on debug mode %!s(int64=3) %!d(string=hai) anos
utils 966c6cf60c faux-getch: More suitable output %!s(int64=4) %!d(string=hai) anos
.clang-format dc1d1edf15 Change text format settings %!s(int64=4) %!d(string=hai) anos
.gitignore ba13465e70 Add *.deb to .gitignore %!s(int64=3) %!d(string=hai) anos
CHANGES c8d65326ed fix 2 links, typos, describes args* attributes %!s(int64=6) %!d(string=hai) anos
ChangeLog edce0a7c8e Adding Debian package required files %!s(int64=12) %!d(string=hai) anos
Doxyfile ebf0742663 Update faux/ctype files %!s(int64=4) %!d(string=hai) anos
ISSUES c8d65326ed fix 2 links, typos, describes args* attributes %!s(int64=6) %!d(string=hai) anos
LICENCE b81ff592c3 From: Emmanuel Deloget <logout@free.fr> %!s(int64=12) %!d(string=hai) anos
Makefile.am 6024987fb7 Makefile.am: add a rule to create debian package %!s(int64=3) %!d(string=hai) anos
README 7fad014c31 Fix README %!s(int64=4) %!d(string=hai) anos
autogen.sh 8cdf6d307a Create m4 dir within autogen.sh script %!s(int64=12) %!d(string=hai) anos
configure.ac e4bc80d3ee Change version and soname due to API changes %!s(int64=3) %!d(string=hai) anos
indent.sh 2ac3b42bc5 Function's brace on new line %!s(int64=4) %!d(string=hai) anos

README

Homepage : http://faux.libcode.org.
Repository : https://src.libcode.org/pkun/faux
See for documentation in sourcecode tree docs/ dir.