Post History

# [C (gcc)], 42 bytes

<!-- language-all: lang-c -->

    c;f(i){c++<8&&(printf("%d",i&1),f(i>>1));}

[Try it online!][TIO-llnmdl5i]

[C (gcc)]: https://gcc.gnu.org/
[TIO-llnmdl5i]: https://tio.run/##LY3NCsIwEITveYohYNglFaygCKl9F1mJ7MFaansqefY0sZ7m5xsYOb5EcpYQSXkV77ubczROOsyR7OFpG3UtN4X2fcscUi4E74cOxGY1AOJnotrp/RSg3flyLeI9A5X@JoAUuLv687fjMn/J2j0mk/IG "C (gcc) – Try It Online"

Binary output version.