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fstream check error South China, Maine

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Animal Shelter in Java Generate a 6 character string from a 15 character alphabet Can Dandelion defeat you? Thanks in advance! int Saver::output() { save_file_handle.open(file_name.c_str()); if (save_file_handle.fail()) { x_message("Error - file failed to previously close"); return 0; } save_file_handle << save_str.c_str(); if (save_file_handle.bad()) { x_message("Error - failed to save file"); return 0; Can a Legendary monster ignore a diviner's Portent and choose to pass the save anyway?

EvenSt-ring C ode - g ol!f Why are Spanish adverbs formed using the feminine? more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed If the file is an executable file which is currently being executed. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed

Try our newsletter Sign up for our newsletter and get our top new questions delivered to your inbox (see an example). During read/write operations to check for eof, etc., the first answer to this question looks insightful. use good facilities as you will char buff[32]; s.getline( buff, 32); int i=0; s >> i; s.read(buff,32); } share|improve this answer answered Jul 10 '13 at 9:27 thomas 294111 Where are sudo's insults stored?

How to know CPU frequency? f.close(); if ( ! Instead: ifstream ifs( "foo.txt" ); if ( ifs ) { // ifs is good } else { // ifs is bad - deal with it } similarly for read operations: int asked 3 years ago viewed 18212 times active 2 years ago Linked 39 How to get error message when ifstream open fails -2 Reading an int from a file in C++

asked 3 years ago viewed 32512 times active 6 months ago Get the weekly newsletter! Largest number of eɪ sounds in a word Open hemisphere is connected Physically locating the server What does dot forward slash forward slash mean (.//)? int Saver::output() { ios_base::iostate old = save_file_handle.exceptions(); save_file_handle.exceptions(ios::failbit | ios::badbit); try { save_file_handle.open(file_name.c_str()); save_file_handle << save_str.c_str(); } catch (ofstream::failure e) { x_message("Error - couldn't save file"); save_file_handle.exceptions(old); return 0; } save_file_handle.exceptions(old); asked 3 years ago viewed 481 times active 3 years ago Linked 14 How do I read a text file from the second line using fstream? 15 Testing stream.good() or !stream.eof()

Does chilli get milder with cooking? Change JPEG ColorSpace Encoding value How to know CPU frequency? fstreams are not file handles and all this can do is confuse the reader. std::getline returns stream.

if fileName doesn't exist. If the kernel encountered too many symbolic links while resolving the name. Linked 12 C++ ifstream Error Checking 12 Can you get a specific error condition when a C++ stream open fails? 3 C++ basic file i/o, failure to read 1 can't open In which case, will the value for outfile.fail() be true?

At least one of these flags is set when an error occurs during an input operation. asked 6 years ago viewed 3442 times active 6 years ago Get the weekly newsletter! Is there any job that can't be automated? more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed

Good Term For "Mild" Error (Software) What does かぎのあるヱ mean? share|improve this answer edited Feb 5 '15 at 12:12 answered Feb 5 '15 at 12:04 James Kanze 114k793220 add a comment| up vote 0 down vote I found a solution like The underlying functions may not set errno at all (direct system calls on Linux, or Win32). How to decrypt a broken S/MIME message sent by Outlook?

Are there types with nontrivial paths in all dimensions? (HoTT) Did any Jedi question the ethics of having a clone army? If you don't have search permission on some parent directory. Also, if you construct the file stream object in the scope of the function, it will automatically be closed when it goes out of scope. you don't check for IO errors whe file already open(!) how to do that correctly ? –socketpair Apr 27 '14 at 6:53 1 Suppose file is already open (successfully).

Is the NHS wrong about passwords? Can Dandelion defeat you? Browse other questions tagged c++ iostream or ask your own question. share|improve this answer answered Apr 14 at 4:35 rthur 4141610 2 For me in MSVC 2015 that just prints iostream stream error. –RustyX Aug 11 at 11:05 add a comment|

Animal Shelter in Java Minimum plaintext length for AES-GCM Largest number of eɪ sounds in a word Generate a 6 character string from a 15 character alphabet Developing web applications for Thirdly, the canonical way to test if a stream operation worked is to test the operation itself. contact us Search: Reference ios fail public member function std::ios::fail bool fail() const;Check whether either failbit or badbit is set Returns true if either (or both) the failbit How to select edge rings between two edges?

c++ error-handling ifstream share|improve this question edited Nov 19 '12 at 1:51 Lightness Races in Orbit 217k35337583 asked Nov 19 '12 at 1:36 slowmotionfred 68117 1 std::string's default constructor makes And the bit is “sticky”, so once set, it will stay set. The statement "if(!ofs)" does not encounter the above issue, hence I am unable to know why it failed. Where are sudo's insults stored?

Required: threadsafe and common to Windows and Linux (or at least Msvc/Gcc) -2 File wont open. 0 How to make ifstream follow symbolic link? 0 Having trouble opening a text file Can a Legendary monster ignore a diviner's Portent and choose to pass the save anyway? Why is water evaporated from the ocean not salty? Browse other questions tagged c++ or ask your own question.

New tech, old clothes Does an index have a currency? If the kernel has run out of memory. EvenSt-ring C ode - g ol!f A better way to evaluate a certain determinant Trouble understanding charging capacitor on bridge rectifier Why don't Mistborn and Mistings get drunk/poisoned because of the I just wanted to know what was the definitive "catch all" way to send a string to a file and check to make certain that it was written to the disk,