1 files changed, 34 insertions, 0 deletions
diff --git a/src/common.c b/src/common.c
new file mode 100644
index 0000000..4ae509a
--- /dev/null
+++ b/src/common.c
@@ -0,0 +1,34 @@
+#include "common.h"
+
+/**
+ * The complimentary function to the posix atoi. It turns an integer into a
+ * string.
+ *
+ * @param i Integer to be converted to string
+ * @param out Output char array. Be sure it has enough room for the output
+ *            string.
+ *
+ * @return int The character count of the output char array
+ */
+int itoa(int i, char* out) {
+  // To keep track of where we are in the array
+  int n = 0;
+  while(i > 9) {
+    printf("  %d\n", i);
+    // This is some crazy simple math here
+    out[n] = (i%10) + 48;
+    // It's an int, so the last number will be stripped
+    i = i/10;
+    n++;
+  }
+  // Have to do this one more time to ensure we get the last number on
+  // zero-ended ints
+  out[n] = (i%10) + 48;
+  // Account for the last char
+  n++;
+  // Annnd the null byte
+  out[n] = '\0';
+  n++;
+  return n;
+}
+