From 8f44964e9951dcac83ffa3d504e7ecf671299311 Mon Sep 17 00:00:00 2001
From: Shucheng <741932183@qq.com>
Date: Fri, 28 Oct 2016 14:11:56 +0800
Subject: [PATCH] fix a bug with 2.92

---
 exercise/ex2-92.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/exercise/ex2-92.c b/exercise/ex2-92.c
index 5103271..049b305 100644
--- a/exercise/ex2-92.c
+++ b/exercise/ex2-92.c
@@ -23,5 +23,15 @@ float_bits float_negate(float_bits f)
 
         if (exp == 0xFF && frac != 0) /* NaN */
                 return f;
-        return (~sign << 31) | (exp << 23) | frac;
+    
+        unsigned reverseSign = ~sign
+        return reverseSign<<31 | (exp << 23) | frac;
+}
+
+
+
+int main(){
+    float_bits a = 0x81E00000;
+    float_bits result = float_negate(a);
+    printf("%x",result);
 }