diff --git a/c-check/GildedRose.c b/c-check/GildedRose.c
new file mode 100644
index 00000000..afb97bbe
--- /dev/null
+++ b/c-check/GildedRose.c
@@ -0,0 +1,90 @@
+#include <string.h>
+#include "GildedRose.h"
+
+Item*
+init_item(Item* item, const char *name, int sellIn, int quality)
+{
+    item->sellIn = sellIn;
+    item->quality = quality;
+    item->name = strdup(name);
+    
+    return item;
+}
+
+void update_quality(Item items[], int size) 
+{
+    int i;
+    
+    for (i = 0; i < size; i++)
+    {
+        if (strcmp(items[i].name, "Aged Brie") && strcmp(items[i].name, "Backstage passes to a TAFKAL80ETC concert"))
+        {
+            if (items[i].quality > 0)
+            {
+                if (strcmp(items[i].name, "Sulfuras, Hand of Ragnaros"))
+                {
+                    items[i].quality = items[i].quality - 1;
+                }
+            }
+        }
+        else
+        {
+            if (items[i].quality < 50)
+            {
+                items[i].quality = items[i].quality + 1;
+
+                if (!strcmp(items[i].name, "Backstage passes to a TAFKAL80ETC concert"))
+                {
+                    if (items[i].sellIn < 11)
+                    {
+                        if (items[i].quality < 50)
+                        {
+                            items[i].quality = items[i].quality + 1;
+                        }
+                    }
+
+                    if (items[i].sellIn < 6)
+                    {
+                        if (items[i].quality < 50)
+                        {
+                            items[i].quality = items[i].quality + 1;
+                        }
+                    }
+                }
+            }
+        }
+
+        if (strcmp(items[i].name, "Sulfuras, Hand of Ragnaros"))
+        {
+            items[i].sellIn = items[i].sellIn - 1;
+        }
+
+        if (items[i].sellIn < 0)
+        {
+            if (strcmp(items[i].name, "Aged Brie"))
+            {
+                if (strcmp(items[i].name, "Backstage passes to a TAFKAL80ETC concert"))
+                {
+                    if (items[i].quality > 0)
+                    {
+                        if (strcmp(items[i].name, "Sulfuras, Hand of Ragnaros"))
+                        {
+                            items[i].quality = items[i].quality - 1;
+                        }
+                    }
+                }
+                else
+                {
+                    items[i].quality = items[i].quality - items[i].quality;
+                }
+            }
+            else
+            {
+                if (items[i].quality < 50)
+                {
+                    items[i].quality = items[i].quality + 1;
+                }
+            }
+        }
+    }
+}
diff --git a/c-check/GildedRose.h b/c-check/GildedRose.h
new file mode 100644
index 00000000..78d54a08
--- /dev/null
+++ b/c-check/GildedRose.h
@@ -0,0 +1,9 @@
+typedef struct
+{
+    char *name;
+    int sellIn;
+    int quality;
+} Item;
+
+extern Item* init_item(Item* item, const char *name, int sellIn, int quality);
+extern void update_quality(Item items[], int size);
diff --git a/c-check/GildedRose.o b/c-check/GildedRose.o
new file mode 100644
index 00000000..37283c3a
Binary files /dev/null and b/c-check/GildedRose.o differ
diff --git a/c-check/GildedRoseTextTests.c b/c-check/GildedRoseTextTests.c
new file mode 100644
index 00000000..d200ca0c
--- /dev/null
+++ b/c-check/GildedRoseTextTests.c
@@ -0,0 +1,43 @@
+#include <stdio.h>
+#include "GildedRose.h"
+
+int
+print_item(Item *item)
+{
+    return printf("%s, %d, %d\n", item->name, item->sellIn, item->quality);
+}
+
+int main()
+{
+    Item items[9];
+    int last = 0;
+    int day;
+    int index;
+    
+    init_item(items + last++, "+5 Dexterity Vest", 10, 20);
+    init_item(items + last++, "Aged Brie", 2, 0);
+    init_item(items + last++, "Elixir of the Mongoose", 5, 7);
+    init_item(items + last++, "Sulfuras, Hand of Ragnaros", 0, 80);
+    init_item(items + last++, "Sulfuras, Hand of Ragnaros", -1, 80);
+    init_item(items + last++, "Backstage passes to a TAFKAL80ETC concert", 15, 20);
+    init_item(items + last++, "Backstage passes to a TAFKAL80ETC concert", 10, 49);
+    init_item(items + last++, "Backstage passes to a TAFKAL80ETC concert", 5, 49);
+    // this Conjured item doesn't yet work properly
+    init_item(items + last++, "Conjured Mana Cake", 3, 6);
+    
+    puts("OMGHAI!");
+
+    for (day = 0; day <= 30; day++)
+    {
+        printf("-------- day %d --------\n", day);
+        printf("name, sellIn, quality\n");
+        for(index = 0; index < last; index++) {
+            print_item(items + index);
+        }
+	
+        printf("\n");
+
+        update_quality(items, last);
+    }
+    return 0;
+}
diff --git a/c-check/GildedRoseTextTests.o b/c-check/GildedRoseTextTests.o
new file mode 100644
index 00000000..e1981da6
Binary files /dev/null and b/c-check/GildedRoseTextTests.o differ
diff --git a/c-check/Makefile b/c-check/Makefile
new file mode 100644
index 00000000..6e077a88
--- /dev/null
+++ b/c-check/Makefile
@@ -0,0 +1,46 @@
+# Makefile for building the kata file with the Google Testing Framework
+#
+# SYNOPSIS:
+#
+#   make [all]  - makes everything, runs tests
+#   make TARGET - makes the given target.
+#   make clean  - removes all files generated by make.
+#   make memtest - run memory leak analysis
+
+# The _POSIX_C_SOURCE definition prevents the compiler from throwing warnings
+CFLAGS = `pkg-config --cflags check` -g --std=c99 -D_POSIX_C_SOURCE=200809L
+LIBS = `pkg-config --libs check`
+
+# All files that should be part of your test should start with 'test'
+TEST_SRC = `ls test*.[c\|h]`
+TEST_BASE = $(basename ${TEST_SRC})
+TEST_OBJECTS = $(addsuffix .o, ${TEST_BASE})
+
+# If you add more implementation classes, add them to this variable
+OBJECT_UNDER_TEST = GildedRose.o
+
+# This is the test application.  You can run this program to see your test output
+TEST_APP = test_gildedrose
+
+
+# This will generate output for several products over a course of several days.
+# You can run this application to build golden rule tests
+GOLDEN_APP = golden_rose
+
+all: ${TEST_APP} ${GOLDEN_APP}
+	./${TEST_APP}
+
+${TEST_APP}: ${TEST_OBJECTS} ${OBJECT_UNDER_TEST}
+	$(CC) $(CFLAGS) -o $@ $^ $(LIBS)
+
+${GOLDEN_APP}: GildedRoseTextTests.o ${OBJECT_UNDER_TEST}
+	$(CC) $(CFLAGS) -o $@ $^
+
+# If you're not on a mac, you should run memtest (in fact, consider adding it to the 'all' target).
+# If you're on a mac, complain to apple for breaking an important development tool.
+memtest: ${TEST_APP}
+	valgrind --leak-check=full --error-exitcode=1 ./${TEST_APP} --nofork
+
+clean:
+	rm -f *.o
+	rm -f ${TEST_APP}
diff --git a/c-check/README b/c-check/README
new file mode 100644
index 00000000..2bc1f69b
--- /dev/null
+++ b/c-check/README
@@ -0,0 +1,5 @@
+run-once.sh runs your tests once
+
+Assumptions:
+  - make and a C++ compiler (like gcc) is installed on your system and is in the PATH
+  - The CppUTest framework is in the directory CppUTest
diff --git a/c-check/golden_rose b/c-check/golden_rose
new file mode 100755
index 00000000..a7b256d9
Binary files /dev/null and b/c-check/golden_rose differ
diff --git a/c-check/run-once.sh b/c-check/run-once.sh
new file mode 100755
index 00000000..4f6b2303
--- /dev/null
+++ b/c-check/run-once.sh
@@ -0,0 +1,2 @@
+make
+./GildedRoseTextTests