diff --git a/CMath.h b/CMath.h
new file mode 100644
index 0000000..238a5f3
--- /dev/null
+++ b/CMath.h
@@ -0,0 +1 @@
+#include "varint.h"
diff --git a/bits.h b/bits.h
new file mode 100644
index 0000000..50a360b
--- /dev/null
+++ b/bits.h
@@ -0,0 +1,36 @@
+#ifndef BITS_H
+#define BITS_H
+
+#if defined(TYPES_64) || defined(TYPES_32) || !defined(TYPES_CUSTOM)
+#define SIZE_LL 64
+#define SIZE_L  64
+#define SIZE_I  32
+#endif
+
+
+union sig_ll {
+    signed long long value : SIZE_LL;
+    struct {
+        unsigned long long value : SIZE_LL - 1;
+        unsigned char sig : 1;
+    } signature;
+};
+
+
+union sig_l {
+    signed long value : SIZE_L;
+    struct {
+        unsigned long value : SIZE_L - 1;
+        unsigned char sig : 1;
+    } signature;
+};
+
+union sig_i {
+    signed int value : SIZE_I;
+    struct {
+        unsigned int value : SIZE_I - 1;
+        unsigned char sig : 1;
+    } signature;
+};
+
+#endif
diff --git a/varint.c b/varint.c
new file mode 100644
index 0000000..13c2d6d
--- /dev/null
+++ b/varint.c
@@ -0,0 +1,18 @@
+#include "varint.h"
+
+
+varint varint_encode(unsigned long long value){
+    
+}
+
+unsigned long long varint_decode(varint varint){
+
+}
+
+unsigned long long zigzag_encode(signed long long value){
+    return ((unsigned long long)value << 1) ^ (value >> 63);
+}
+
+signed long long zigzag_decode(unsigned long long value){
+
+}
diff --git a/varint.h b/varint.h
new file mode 100644
index 0000000..12d62e6
--- /dev/null
+++ b/varint.h
@@ -0,0 +1,13 @@
+#ifndef VARINT_H
+#define VARINT_H
+
+#include "bits.h"
+
+typedef char * varint;
+
+varint varint_encode(unsigned long long);
+unsigned long long varint_decode(varint);
+unsigned long long zigzag_encode(long long);
+long long zigzag_decode(unsigned long long);
+
+#endif