Data commit

Task/CRC-32/Julia/crc-32-1.julia

@@ -0,0 +1,2 @@
+using Libz
+println(string(Libz.crc32(UInt8.(b"The quick brown fox jumps over the lazy dog")), base=16))

Task/CRC-32/Julia/crc-32-2.julia

@@ -0,0 +1,31 @@
+function crc32(crc::Int, str::String)
+    table = zeros(UInt32, 256)
+
+    for i in 0:255
+        tmp = i
+        for j in 0:7
+            if tmp & 1 == 1
+                tmp >>= 1
+                tmp ⊻= 0xedb88320
+            else
+                tmp >>= 1
+            end
+        end
+
+        table[i + 1] = tmp
+    end
+
+    crc ⊻= 0xffffffff
+
+    for i in UInt32.(collect(str))
+        crc = (crc >> 8) ⊻ table[(crc & 0xff) ⊻ i + 1]
+    end
+
+    crc ⊻ 0xffffffff
+end
+
+str = "The quick brown fox jumps over the lazy dog"
+crc = crc32(0, str)
+assert(crc == 0x414fa339)
+println("Message: ", str)
+println("Checksum: ", hex(crc))