This image is based on Alpine Linux image, which is only a 5MB image, and contains C compiler (GCC package).
This image is only 130MB on disk.
NOTE: If you are looking for C++ (GCC) Docker image, there is one: frolvlad/alpine-gxx
$ echo -e '#include <stdio.h>\nint main() { printf("Hello World\\n"); }' > qq.c
$ docker run --rm -v `pwd`:/tmp frolvlad/alpine-gcc gcc --static /tmp/qq.c -o /tmp/qq
Once you have run these commands you will have qq
executable in your current directory and if you
execute it, you will get printed 'Hello World'!