Add zsetup, zunsetup, zinit, zfree, zswap, zsave, zload, zbits, and zlsb

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 20 insertions, 0 deletions

diff --git a/src/zsave.c b/src/zsave.c
new file mode 100644
index 0000000..b312307
--- /dev/null
+++ b/src/zsave.c
@@ -0,0 +1,20 @@
+/* See LICENSE file for copyright and license details. */
+#include "internals"
+
+#include <string.h>
+
+
+size_t
+zsave(z_t a, void *buffer)
+{
+	if (buffer) {
+		char *buf = buffer;
+                *((int *)buf)    = a->sign,    buf += sizeof(int);
+                *((size_t *)buf) = a->used,    buf += sizeof(size_t);
+                *((size_t *)buf) = a->alloced, buf += sizeof(size_t);
+		if (a->sign) {
+			memcpy(buf, a->chars, a->used * sizeof(*(a->chars)));
+		}
+	}
+	return sizeof(z_t) - sizeof(a->chars) + (a->sign ? a->used * sizeof(*(a->chars)) : 0);
+}