c - gets() function string behaviour -

-

इस सवाल का पहले से ही एक उत्तर है: < / P>

  • 6 उत्तर

मेरे पास एक छोटी सी समस्या है कार्य हो जाता है और सरल अगर अभिव्यक्ति हो यह जांचना है कि इनपुट सही है या नहीं, इस मामले में यह होना चाहिए:! एस 

  चार चेककॉम [5]; हो जाता है (checkCommand); अगर (checkCommand == "! एस") ....; और डालता है ("अमान्य आदेश!");

कैसे मैं अभिव्यक्ति के लिए सही मूल्य प्राप्त करने के लिए कभी नहीं समाप्त होता है, भले ही मैं टाइप करता हूं! एस? सभी उत्तरों के लिए धन्यवाद!

क्योंकि आप इस तरह से सी में तार की तुलना नहीं करते हैं: (checkCommand == "! एस")

स्ट्रिंग की तुलना करने के लिए, आपको strcmp या strncmp या memcmp

यदि (strncmp (चेक कॉमांड, "! एस", 5) == 0)

इन फ़ंक्शंस के बारे में अधिक जानने के लिए, विज़िट करें और समान।

आपको एक चेतावनी भी होनी चाहिए " हो खतरनाक है ..." कुछ इस तरह। आपको हो जाता है का उपयोग करने से बचने और इसके बजाय fgets का उपयोग करना चाहिए। क्रिस जेस्टर-यंग अपने जवाब में इसका कारण समझाया गया है।


Comments

Post a Comment

Popular posts from this blog

c++ - Cmake produces file extensions in static library archives -

-
I have recently switched to autotools to cement, since the limiter cross platform is better for development and what I saw When I build a stable library of my C ++ code, all the files inside .cpp.o is a suffix ar income tax PA8 / libgenericTZR.a genericTZR.cpp.o I have seen other libraries made by other tools and they do not do it, I'm not sure this is the realm And there is a bad thing, but how can I create static libraries without cpp file extension? This is my CMake file add_executable (PA8 ISP_Charges.cpp genericTZR.cpp genericTZR.h) set (LIBSRC genericTZR.c genericTZR.h) add_library (genericTZR shared $ {LIBSRC}) add_library (genericTZR shared $$ TARGET_OBJECTS: myObjects & gt;) install add_library (Generic TZR-static static $ {LIBSRC}) set_target_properties (Generic TZR-Static Properties OUTPUT_NAME $ install (TARGETS PA8 DESTINATION BIN) TARGETS GENICTZR GENERICTZR-STATIC DESTINATION lib) Installed (files "$ {PROJECT_BINARY_DIR} /PA8/genericTZR.h...
Read more

c# - Roxy file manager in MVC doesn't accept session path -

-
Hi friends I've downloaded a file manager for my MVC project. So I added to my project and everything works fine but everyone can use this product I mean everyone can type urls and upload files to my host !!!! This filemanager has a Jason config file, as you can see here: {"FILES_ROOT": "Fileman / Upload "," "File_type_kenny": "file", "THUMBS_VIEW_WIDTH": "140", "THUMBS_VIEW_HEIGHT": "120", "PREVIEW_THUMB_WIDTH": "300", "PREVIEW_THUMB_HEIGHT": "200", "MAX_IMAGE_WIDTH": "0" "ASP_net / Main.Shex? A = Created", " Dealederer ":" ASP_net / MAN.assx "ADELEDED IR "," MOVEDIR ":" ASP_net / Main.Shex? A = MoVEDIR "," Copdier ":" ASP_net / Main.Shex? A = Copdier "," Richie Dar ":" ASP_net / Main ASP_net / main.hex? A = Upload "," Downlo...
Read more

c# - XML - Serialize class - Some questions -

-
I have the idea of ​​serializing the properties of a class in an XML-file and then uploading this file to the server The reason for this is that I want to download this file again and read the serialized content. Then this kind of structure: file exists (myfile.xml) - & gt; Serialize the file in data from class (myclass.cs) - & gt; Upload file. Now the content may look something like this: Now the problem is, I do not know how to walk. I want the new data to be serialed in the next way, but it should be linked to that XML-file, not a new one. So I download this file and then I serialize the new data as an attachment so that it will look like this: And it should be repeated many times as I want: download file, serial new data and attach it together, then upload it again. Now, the second issue is, I want to read it. I also use XML-class for this. For the type of ultimate type, the data should be serialized, I set the square in which the assets are. But now,...
Read more