From 9d86e03845b5a87de26fd2868097af0884370622 Mon Sep 17 00:00:00 2001
From: clarelsy <sanyingli@gmail.com>
Date: Sat, 16 Apr 2016 23:17:44 -0400
Subject: [PATCH 1/2] Update README.md

We may use subscript only on a non-const map.
---
 ch11/README.md | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/ch11/README.md b/ch11/README.md
index 39665a26..159b9035 100644
--- a/ch11/README.md
+++ b/ch11/README.md
@@ -113,14 +113,7 @@ const string& transform(const string &s, const map<string, string> &m)
     return m[s];
 }
 ```
-Such code could be explained as following pseudocode:
-```python
-    if m contains key s:
-        return m[s]
-    else:
-        insert pair {s, ""} into m
-        return m[s]     // That is an empty string
-```
+The above code won't compile because the subscript operator might insert an element (when the element with the key s is not found), and we may use subscript only on a map that is not const.
 
 ## Exercise 11.35:
 >In buildMap, what effect, if any, would there be from rewriting `trans_map[key] = value.substr(1);` as `trans_map.insert({ key, value.substr(1) })`?

From b743440304db973d61128f9b9d123f5161bfe72c Mon Sep 17 00:00:00 2001
From: Renjun Zheng <zheng174@purdue.edu>
Date: Mon, 18 Apr 2016 21:03:00 -0400
Subject: [PATCH 2/2] fix the problem of initialize static class variable

---
 ch13/ex13_17_2.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ch13/ex13_17_2.cpp b/ch13/ex13_17_2.cpp
index 7d243e08..0b28c51c 100644
--- a/ch13/ex13_17_2.cpp
+++ b/ch13/ex13_17_2.cpp
@@ -26,7 +26,7 @@ class numbered {
     static int unique;
 };
 
-static int unique = 10;
+int numbered::unique = 10;
 
 void f(numbered s) {
     std::cout << s.mysn << std::endl;