std::wifstream is the C++ standard library type for reading wide characters from files.
Questions tagged [wifstream]
27 questions
16
votes
3 answers
does (w)ifstream support different encodings
When I read a text file to a wide character string (std::wstring) using an wifstream, does the stream implementation support different encodings - i.e. can it be used to read e.g. ASCII, UTF-8, and UTF-16 files?
If not, what would I have to do?
(I…
peterchen
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13
votes
1 answer
Why can I not read a UTF-16 file longer than 4094 characters?
Some information:
I've only tried this on Linux
I've tried both with GCC (7.2.0) and Clang (3.8.1)
It requires C++11 or higher to my understanding
What happens when I run it
I get the expected string "abcd" repeated until it hits the position of…
Joakim L. Christiansen
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13
votes
1 answer
Seeking istreambuf_iterator clarifications, reading a complete text file of Unicode characters
In the book “Effective STL” by Scott Meyers, there is a nice example of reading an entire text file into a std::string object:
std::string sData;
/*** Open the file for reading, binary mode ***/
std::ifstream ifFile (“MyFile.txt”,…
Chris Wiesner
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7
votes
5 answers
How to write a non-English string to a file and read from that file with C++?
I want to write a std::wstring onto a file and need to read that content as std:wstring. This is happening as expected when the string as L"". But the problem is happening when we have character like Bengali, Kannada, Japanese…
Abhrajyoti Kirtania
- 183
- 12
5
votes
1 answer
Why does `getline` on `wifstream` read garbled input from UTF-16 encoded file?
While trying to read a UTF-16 encoded file with hints from this answer, I got the problem that, after reading few thousand characters, the getline-method starts to read in garbage mojibake.
Here is my main:
#include
#include…
Indestruktible
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- 5
5
votes
2 answers
how to use std::wifstream for reading its content as a std::wstring
I am trying this:
std::wstringstream wstrStream;
std::wifstream wifStream(str.c_str());
wifStream >> wstrStream;
but I got this compilation error:
error C2664: 'std::basic_istream<_Elem,_Traits>::_Myt…
Stephane Rolland
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3
votes
1 answer
How to handle multiple locales for ifstream, cout, etc, in c++
I am trying to read and process multiple files that are in different encoding. I am supposed to only use STL for this.
Suppose that we have iso-8859-15 and UTF-8 files.
In this SO answer it states:
In a nutshell the more interesting part for…
BugShotGG
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2
votes
2 answers
How can I get C++ wfstream to work with Unicode filepath?
I have an application that is working with file I/O using utf-8 encoded widestrings.
Working Code:
const wchar_t* wc = L"C:\Documents\TestPath\TestFile.txt";
std::wfstream wf(wc);
wf.imbue(std::locale(wf.getloc(), new std::codecvt_utf8
Feels Like C--
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- 2
2
votes
2 answers
seekg and imbue in wifstream work wrong
I have a file like below:
$ xxd 1line
0000000: 3939 ba2f 6f20 6f66 0d0a 99./o of..
I would like to read this one line in C++:
#include
#include
#include
#include
#include
int…
mkk
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2
votes
1 answer
How to convert between shared_ptr to FILE* in C++?
I am trying to use a FILE pointer multiple times through out my application
for this I though I create a function and pass the pointer through that. Basically I have this bit of code
FILE* fp;
_wfopen_s (&fp, L"ftest.txt", L"r");
…
Hossein
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1
vote
2 answers
Reading and writing files in Cyrillic in c++
I have to first read a file in Cyrillic, then randomly pick random number of lines and write modified text to a different file. No problem with Latin letter, but I run into a problem with Cyrillic text, because I get some rubbish. So this is how I…
Sergei G
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1
vote
0 answers
How to write a random access iterator for std::wifstream?
My normal procedure is as follows:
.
.
.
// I create a wifstream from file
std::wifstream wif(L"...");
// Generate a wstring based on file content
std::wstring m_wstr((istreambuf_iterator(wif)), istreambuf_iterator());
// Do…
Okan Barut
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1
vote
0 answers
How can I read a text file containing Unicode, into a wchar_t pointer using wifstream?
I'm trying to read Unicode characters from a text file into a wchar_t pointer array, using wifstream. Here is a code snippet:
locale::global(std::locale("en_US.UTF-8"));
std::wifstream inputFile("gsmCharacterSet.txt", std::ifstream::binary |…
yogur
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1
vote
0 answers
Cannot open .mtl file unless path is hard coded
I'm having trouble with my .OBJ file model loader. I am reading in the model fine, but when it comes to reading in the .mtl file the file will only open if I hard code the path.
I have check the path being given, and it matches the path I hard…
user3640122
- 15
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1
vote
0 answers
wifstream with imbue, locale produces valgrind errors
I implemented a language detector using ngrams and all works fine so far. In order to detect a bunch of languages I have a set of language dependent ngrams files for each supported language my detector needs to read in before the actual detection is…
Andreas W. Wylach
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