Add new C bit iterator

This is an implementation of the linked hack for libgmp.  An
arithmetic-based solution seems ideal for performance.  However, due to
the potential size of our output (entire files), a big-integer library
is needed for the base type.

Signed-off-by: Malfurious <m@lfurio.us>

1 files changed, 5 insertions, 0 deletions

diff --git a/pszip.h b/pszip.h
new file mode 100644
index 0000000..9d07e49
--- /dev/null
+++ b/pszip.h
@@ -0,0 +1,5 @@
+#pragma once
+
+#include <gmp.h>
+
+void pszip_iterate_bithack01(mpz_t, const mpz_t);