c-cpp-lua-ruby-perl-python-polyquine

A polyglot quine that prints its own source code, valid in:

• C
• C++
• Lua
• Ruby
• Perl
• Python

Requirements

Language	Minimum Version	Tested Version
C (gcc)	C99	11.4.0
C++ (g++)	C++11	11.4.0
Python	3.6	3.10.12
Lua	5.1	5.4.4
Ruby	2.0	3.0.2
Perl	5.0	5.34.0

Run it

# C
gcc -std=c99 polyquine.c -o polyquine && ./polyquine

# C++ (all warnings disabled)
g++ -std=c++11 -w polyquine.c -o polyquine && ./polyquine

# Python
python3 polyquine.c

# Lua
lua polyquine.c

# Ruby
ruby polyquine.c

# Perl
perl polyquine.c

Verify it

# C
gcc -std=c99 polyquine.c -o polyquine && ./polyquine | diff - polyquine.c

# C++ (all warnings disabled)
g++ -std=c++11 -w polyquine.c -o polyquine && ./polyquine | diff - polyquine.c

# Python
python3 polyquine.c | diff - polyquine.c

# Lua
lua polyquine.c | diff - polyquine.c

# Ruby
ruby polyquine.c | diff - polyquine.c

# Perl
perl polyquine.c | diff - polyquine.c

Note: No output means the quine is correct. The -w flag disables all C++ compilation warnings.