Unicode version of getline function

Question

5.00/5 (2 votes)

See more:

Hello Programmers,

I am converting my ascii C++ project to unicode.I am facing troubles with getline function.

Have a look on the code pasted below.

C++

// Ascii code:
 
         string OutputString;
	ifstream IniFile ("D:\\FileName.INI");
	
	while ( /*some condition*/ )
	{
		getline(IniFile, OutputString);
		
	}

// After conversion in unicode:

         twstring OutputString;
	ifstream IniFile (_T("D:\\FileName.INI"));
	
	while ( /*some condition*/ )
	{
		getline(IniFile, OutputString);
		
	}

When I try to build in unicode, it ends up with below error.

error: no instance of overloaded function "getline" matches the argument"

I understand that getline does not accept argument of twstring type. Based on that i have below questions.

Questions:
- Do we have unicode version of getline function?
- If not how to handle these situations?

Please help.

Regards,
Joy

Posted 25-Jul-13 19:52pm

joyjhonson

Updated 1-Nov-21 3:24am

Richard MacCutchan

v3

Add a Solution

2 solutions

Solution 1

Please see: http://forums.codeguru.com/showthread.php?511066-RESOLVED-Is-it-possible-to-use-getline-with-unicode[^].

—SA

Posted 25-Jul-13 19:56pm

Sergey Alexandrovich Kryukov

Comments

Michael Haephrati 1-Nov-21 8:25am

What was the actual solution for getting the line as UNICODE?

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Michael Haephrati · Accepted Answer · 2021-11-01T03:24:00

I stumbled upon this question while trying to understand why I get gibberish text when I convert PDF files into text, as part of this [^] project. This question is still relevant today, and there is no real answer. An ideal answer would be the same code blocked which was included in the original question, but fixed. So I did some research...

First, you need to use imbue[^] in order to set the encoding of your choice.

Second, use wifstream [^] instead of ifstream[^].

The following code works with wstring[^].

Note that some Visual Studio default projects contain

#ifdef _DEBUG
#define new DEBUG_NEW
#endif

If so, remove this block. See this answer about this Macro[^].

So here is the fixed code:

#include <locale>
wstring OutputString;
wifstream IniFile (_T("D:\\FileName.INI"));
IniFile.imbue(std::locale(std::locale::empty(), new std::codecvt_utf8<wchar_t>));

while (true )
{
    getline(IniFile, OutputString);
}

Tested on my own project.
Before[^]:
After[^]: