--- a/c/bitVector/main.cc	Fri Oct 23 18:53:46 2015 +0900
+++ b/c/bitVector/main.cc	Mon Oct 26 18:36:19 2015 +0900
@@ -3,18 +3,37 @@
 #include <string.h>
 #include "bitInfo.h"
 
+void bitPrint(BitInfoPtr bi);
+
 int bitBlock = sizeof(unsigned long) * 8;
 
-void bitSet(BitInfoPtr bi, int bitSetPosition) {
+BitInfoPtr bitSet(int bitSetPosition) {
+
+    BitInfoPtr bi = (BitInfoPtr)malloc(sizeof(BitInfo));
+
+    bi->arrayNum = (bitSetPosition + 1) / bitBlock;
+    if (((bitSetPosition + 1) % bitBlock) != 0) bi->arrayNum++;
 
+    printf("Array Num : %d\n",bi->arrayNum);
+
+    unsigned long bitContainer[bi->arrayNum];
+    for (int i = 0; i < bi->arrayNum; i++) {
+        bitContainer[i] = 0;
+    }
     unsigned long tmp = 1;
     int arrayPosition = 0;
 
     arrayPosition = bitSetPosition / bitBlock;
     bitSetPosition = bitSetPosition % bitBlock;
 
+
+    bi->bitContainer = bitContainer;
     tmp = tmp << (bitBlock - 1 - bitSetPosition);
     bi->bitContainer[arrayPosition] = bi->bitContainer[arrayPosition] | tmp;
+
+    bitPrint(bi);
+
+    return bi;
 }
 
 void bitPrint(BitInfoPtr bi) {
@@ -29,7 +48,6 @@
 
 int main(int argc, char **argv) {
 
-    BitInfoPtr bi = (BitInfoPtr)malloc(sizeof(BitInfo));
     int bitSetPosition = 0;
 
     for (int i = 1; i < argc ; i++) {
@@ -38,18 +56,7 @@
         }
     }
 
-    bi->arrayNum = (bitSetPosition + 1) / bitBlock;
-    if (((bitSetPosition + 1) % bitBlock) != 0) bi->arrayNum++;
-
-    printf("Array Num : %d\n",bi->arrayNum);
-
-    unsigned long bitContainer[bi->arrayNum];
-    for (int i = 0; i < bi->arrayNum; i++) {
-        bitContainer[i] = 0;
-    }
-
-    bi->bitContainer = bitContainer;
-    bitSet(bi,bitSetPosition);
+    BitInfoPtr bi = bitSet(bitSetPosition);
     bitPrint(bi);
     return 0;
 }