update

basic_content/bit/learn.cpp

@@ -0,0 +1,19 @@
+#include<iostream>
+
+using namespace std;
+struct stuff 
+{
+    unsigned int field1: 30;
+    unsigned int       : 2;
+    unsigned int field2: 4;
+    unsigned int       : 0;
+    unsigned int field3: 3; 
+};
+int main(){
+    struct stuff s={1,3,5};
+    cout<<s.field1<<endl;
+    cout<<s.field2<<endl;
+    cout<<s.field3<<endl;
+    cout<<sizeof(s)<<endl;
+    return 0;
+}