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POHow to write a non-English string to a file and read from that file with C++?
 

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  1. POHow to write a non-English string to a file and read from that file with C++?
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    <p>I want to write a <code>std::wstring</code> onto a file and need to read that content as <code>std:wstring</code>. This is happening as expected when the string as <code>L"&lt;Any English letter&gt;"</code>. But the problem is happening when we have character like Bengali, Kannada, Japanese etc, any kind of non English letter. Tried various options like:</p> <ol> <li>Converting the <code>std::wstring</code> to <code>std::string</code> and write onto the file and reading time read as <code>std::string</code> and convert as <code>std::wstring</code> <ul> <li>Writing is happening (I could see from edito) but reading time getting wrong character</li> </ul></li> <li>Writing <code>std::wstring</code> onto wofstream, this is also not helping for native language character letters like <code>std::wstring data = L"হ্যালো ওয়ার্ল্ড";</code></li> </ol> <p>Platform is mac and Linux, Language is C++</p> <p>Code:</p> <pre><code>bool write_file( const char* path, const std::wstring data ) { bool status = false; try { std::wofstream file(path, std::ios::out|std::ios::trunc|std::ios::binary); if (file.is_open()) { //std::string data_str = convert_wstring_to_string(data); file.write(data.c_str(), (std::streamsize)data.size()); file.close(); status = true; } } catch (...) { std::cout&lt;&lt;"exception !"&lt;&lt;std::endl; } return status; } // Read Method std::wstring read_file( const char* filename ) { std::wifstream fhandle(filename, std::ios::in | std::ios::binary); if (fhandle) { std::wstring contents; fhandle.seekg(0, std::ios::end); contents.resize((int)fhandle.tellg()); fhandle.seekg(0, std::ios::beg); fhandle.read(&amp;contents[0], contents.size()); fhandle.close(); return(contents); } else { return L""; } } // Main int main() { const char* file_path_1 = "./file_content_1.txt"; const char* file_path_2 = "./file_content_2.txt"; //std::wstring data = L"Text message to write onto the file\n"; // This is happening as expected std::wstring data = L"হ্যালো ওয়ার্ল্ড"; // Not happening as expected. // Lets write some data write_file(file_path_1, data); // Lets read the file std::wstring out = read_file(file_path_1); std::wcout&lt;&lt;L"File Content: "&lt;&lt;out&lt;&lt;std::endl; // Let write that same data onto the different file write_file(file_path_2, out); return 0; } </code></pre>
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    1. USAbhrajyoti Kirtania
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      1. POHow to write a non-English string to a file and read from that file with C++?
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      1. POHow to write a non-English string to a file and read from that file with C++?
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      1. POHow to write a non-English string to a file and read from that file with C++?
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      1. VTUpMod
    1. COUse `std::wifstream` and `std::wofstream` (or `std::wfstream`), then you can use `std::wstring` directly.
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      1. POHow to write a non-English string to a file and read from that file with C++?
      1. USSome programmer dude
    2. CO@JoachimPileborg, I wrote the above sample code but this is not working as expected when the string contains any no English character... like std::wstring data = L"হ্যালো ওয়ার্ল্ড"; etc..
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      1. POHow to write a non-English string to a file and read from that file with C++?
      1. USAbhrajyoti Kirtania
    3. COUnrelated, but why do you open the file in binary mode if you're only reading/writing text? Also, when writing you don't have to `flush` the file as that will be done by closing it.
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      1. POHow to write a non-English string to a file and read from that file with C++?
      1. USSome programmer dude
 

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