c - Confused with the char array when scanf -

-

मैं एक छोटे से प्रोग्राम से भ्रमित हूं। 

  #include & lt; stdio.h & gt; # परिभाषित LEN 10 int main () {char str1 [LEN] = "\ 0"; चार स्ट्रॉज़ [एलएन] = "\ 0"; Scanf ("% s", str1); Scanf ("% s", str2); Printf ("% s \ n", str1); Printf ("% s \ n", str2); वापसी 0; }   
 अगर मेरा इनपुट है:  
 
 मैंगोबाटाओ 
 मैंगोबैटो 123456   
 आउटपुट क्यों होना चाहिए: < / P> 
 
 123456 
 mangobatao123456   
 और नहीं:  
 
 mangobatao 
 mangobatao123456   
 कैसे  char  सरणी को स्मृति में आवंटित किया गया है?   
 
 < P> ठीक है, एक 10 अक्षर  char  एरे फिट नहीं होगा  "mangobatao" , क्योंकि इसमें 10 अक्षर हैं - शून्य टर्मिनेटर के लिए कोई जगह नहीं है इसका मतलब है कि आपने अपरिभाषित व्यवहार का कारण बना है, इसलिए कुछ भी हो सकता है।  
 इस मामले में, ऐसा लगता है कि आपका कंपाइलर ने  str2  से पहले  str1  स्मृति में, इसलिए जब आप  scanf  को भरने के लिए  str2  पर कॉल करते हैं, तो लंबी स्ट्रिंग  str1  की शुरुआत को ओवरराइट करता है यही कारण है कि आप  str2  को प्रिंट करने का प्रयास करते समय आपको जो कोड की सोच रहे हैं उसका अंत देखें। यदि आप 100 की लंबाई का उपयोग करते हैं तो आपका उदाहरण ठीक काम करेगा।

Comments

Post a Comment

Popular posts from this blog

mysql - BLOB/TEXT column 'value' used in key specification without a key length -

-
I have developed an extension which works up to 1.6 on Magren (I'm trying Enterprise Edition, And I think the community is the same problem, because it is the same code). In my install script, I see the $ installer-> gt; CreateEntityTables ($ this- & gt; getTable ('alphanum / info')); The installation is done until it is not in the _text unit table. It crashed there! It turns out that when I log in to SQL and run it via PHPmyadmin, then this error is: Blob / Text column 'value' is used without the key 'key' . I saw the code there, and this is what is trying to create an index on the value column: -> addIndex ($ this- & gt; getIdxName ($ eavTableName, array ( 'attribute_id array (' attribute_id ',' value ')) - & gt; addIndex ($ this- & gt; getIdxName ($ eavTableName, array (' entity_type_id ' , 'Value')), array ('entity_type_id', 'value')) If there is no if statement is n...
Read more

javascript - What is an alternative to using getElementByClass for hiding multiple elements? -

-
I have a page with some links that I would like to be able to toggle with two buttons. It works with a link using getElementById, but I need to toggle some of those groups. I started with it, but it failed to work. I've heard that GetElementByClass has worked with everything but IE, but I'm using Opera 11.5 and it still does not work. I've searched a bit, but I'm new to some JavaScript and most of the explanation is not understood. Does anyone help me with a simple option, or can I help me fix the problem I've made? This is a test page I was using. & lt; Head & gt; & Lt; Script type = "text / javascript" & gt; Function hideNames () {document.getElementByClass ("WebName"). Style.display = "none"; } Function ShowName () {document.getElementByClass ("WebName"). Style.display = "inline"; } & Lt; / Script & gt; & Lt; / Head & gt; & Lt; Body & gt; & Lt; P class = "web...
Read more

c# - How to store a 128 bit integer with nHibernate? -

-
question:? How can I store a 128-bit integer with nHibernate (IPv6) especially Firebird, where BigInteger is at MAX ^ 2 ^ 64 I want to calculate as: select * T_Country_IP_Range where (block_from & lt;; = @in_IP) and (block_to & gt ;. = @in_ip) then this storage as text / varchar / four is not an option It really does not seem to have any Firebird support for INT128. What you can do is represent 128bits as two 64-bit fields, upper 64 bits in one area ( IP_upper ) and others in less 64bits ( IP_Lower ). All comparison operations must be compared to the farm. If the upper area is small / large or if it is equal and then check the lower area: SELECT * to T_Country_IP_Range WHERE (block_from_upper & lt; @_____ above) (block_from_upper = @in_IP_upper and block_from_lower & Lt; = @in_IP_lower) and (block_to_upper> gt; @in_IP_upper or (block_to_upper = @in_IP_upper and block_to_lower & gt; = @in_IP_lower)) Kinda Strange, no doubt
Read more