Add crc32()

src/fart/crc32.d

@@ -0,0 +1,18 @@
+module fart.crc32;
+
+import std.digest.crc;
+
+/**
+ * Calculate the CRC32 across the given chunk(s) of data.
+ */
+public uint crc32(Args...)(Args data)
+{
+    CRC32 crc32;
+    crc32.start();
+    static foreach (arg; data)
+    {
+        crc32.put(cast(const(ubyte)[])arg);
+    }
+    auto crc = crc32.finish();
+    return crc[0] | (crc[1] << 8) | (crc[2] << 16) | (crc[3] << 24);
+}