Wifstream getline wstring

2020-02-27 19:45

The problem is with your call to the global function getline (a, line). This takes a std: : string. Use the method instead of the getline function.The problems seems to be in wifstream (the same problem is present in wfstream). Comment 1 John Ahlgren 13: 53: 15 UTC Created attachment 6433 [details The file test. txt You'll need this file to confirm the bug. wifstream getline wstring

Oct 02, 2006 character. I need to stream them. Thus I use wifstream etc. However the open member function of is not templated, and use const char as filename. I have my filename as wstring, where cstr() returns const wchart type. Thus how to convert a wstring to string or const char and pass to open of wifstream? I know of functions: mbtowc and wctomb.

Feb 03, 2007 using getline with ifstream. C C Forums on Bytes. using getline with ifstream. P: 3 manwanirg. the function getline is a public member of istream and cin. getline can be used. Since ifstream is publicily derived from istream, getline shall be available in ifstream as well. However, on solaris ver 2. 7, getline is not recognised. Aug 29, 2010 The reason being that EOF is not flagged until AFTER the read fails. That means you get one corrupted line each time. By putting the getline() inside the while condition you make sure that the read was a success before performing the while block. wifstream getline wstring Jul 29, 2013 You could use codecvtutf8utf16 if the file is really UTF8. The following example program will display its source correctly (assuming it is saved as a UTF8 file named main. cpp):

As Kerrek SB said correctly There is 2 possibilities: 1) Second line is an empty line 2) there is no second line and all more than 1000 character is in one line, so second getline has nothing to get. share wifstream getline wstring Aug 21, 2013 If you use std: : wifstream then you have to install a UTF8 filter on it to make it work anyway. And since no compiler yet supports there's not much point. Just open the file with a std: : ifstream, read a line with a std: : string, and convert it to a std: : wstring using something like helios's stuff (or whatever). istream& getline (char s, streamsize n ); istream& getline (char s, streamsize n, char delim ); Extracts characters from the stream as unformatted input and stores them into s as a cstring, until either the extracted character is the delimiting character, or n characters have been written to s (including the terminating null character). The results are in! See what nearly 90, 000 developers picked as their most loved, dreaded, and desired coding languages and more in the 2019 Developer Survey. reading a line from ifstream into a string variable. The return value of getline() (a stream object) should be evaluated in a bool expression. Bool evaluation of the stream object does a very important trick here: it evaluates failbit and badbit of the underlying stream. One should make use of that.

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