Rewrite code, but keeping the exact same semantic and behaviourHEADmain

- remove `#ifndef TWEETNACL_H` guard inside `tweetnacl.h`: as headers
  shouldn't include other headers;
- remove `#define sv static void` golfing alias;
- remove `#define FOR(i,n) for (i = 0;i < n;++i)` golfing alias;
- assert that the generated `tweetnacl.o` code is identical to the
  original code, available at `tests/assert-identical.sh`;
- remove all extra definitions from tweetnacl.h;
- rewrite code with the correct indentation, spacing and formatting;
- use C99 constructs over C89 (for loop variable declarations inside
  the parentheses);
- use smaller types on loop variables, mostly `u8` over `int`,
  `i64`, etc.;
- fix the public API;
- add fuzz targets;

1 files changed, 25 insertions, 0 deletions

diff --git a/tests/assert-identical.sh b/tests/assert-identical.sh
new file mode 100755
index 0000000..1a25f62
--- /dev/null
+++ b/tests/assert-identical.sh
@@ -0,0 +1,25 @@
+#!/bin/sh
+set -eu
+
+NAME='tweetnacl'
+CFLAGS='-O3 -s'
+
+trap "rm -f tests/resources/impl.c src/impl.cmp.o tests/resources/impl.cmp.o" \
+	EXIT
+
+(
+cd src/
+gcc $CFLAGS -o impl.cmp.o -c impl.c
+strip impl.cmp.o
+) &
+
+(
+cd tests/resources/
+cp "$NAME".c impl.c
+gcc $CFLAGS -o impl.cmp.o -c impl.c
+strip impl.cmp.o
+) &
+
+wait
+
+cmp tests/resources/impl.cmp.o src/impl.cmp.o