From cce2cbf66b47b26254f57f3fad5dfac9bf45496f Mon Sep 17 00:00:00 2001
From: haiduo <haiduohaiduo@outlook.com>
Date: Thu, 15 Aug 2019 12:48:02 +0800
Subject: [PATCH] =?UTF-8?q?=E7=BA=A0=E6=AD=A3=E9=94=99=E8=AF=AF?=
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---
 excersize/ch06.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/excersize/ch06.md b/excersize/ch06.md
index 7e2db07..0b6617c 100644
--- a/excersize/ch06.md
+++ b/excersize/ch06.md
@@ -32,7 +32,7 @@
          return s;
    }
 (b) void f2(int i) { /* ... */ }
-(c) int calc(int v1, int v2) { /* ... */ }
+(c) int calc(int v1, int v2) { /* ... */ return ; }
 (d) double square (double x) { return x * x; }
 ```
 
@@ -48,8 +48,8 @@ int fact(int i)
 {
     if(i<0)
     {
-        runtime_error err("Input cannot be a negative number");
-        cout << err.what() << endl;
+        std::runtime_error err("Input cannot be a negative number");
+        std::cout << err.what() << std::endl;
     }
     return i > 1 ? i * fact( i - 1 ) : 1;
 }