Rewrite code, but keeping the exact same semantic and behaviourHEADmain

- assert that the generated `siphash.o` code is identical to the
  original code, available at `tests/assert-identical.sh`;
- remove unneeded `#define`s;
- rewrite code with the correct indentation, spacing and formatting;
- use C99 constructs over C89 (for loop variable declarations inside
  the parentheses);
- fix the public API.

1 files changed, 6 insertions, 1 deletions

diff --git a/.gitignore b/.gitignore
index 155dfbe..ad58f34 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,8 @@
-/*.o
 /*.a
 /*.bin
+/src/meta.h
+/src/*.o
+/src/*.cat
+/tests/*.o
+/tests/*.a
+/tests/*.bin