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Questions tagged [wchar]

wchar.h is a header file in the C standard library. It is a part of the extension to the C programming language standard done in 1995. It contains extended multibyte and wide character utilities. The standard header is included to perform input and output operations on wide streams. It can also be used to manipulate the wide strings.

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Extension issue for renamed file for FIle Reading in C / C++

I have a code for reading the header of a csv file. First I check whether the extenson is .csv or not. Then I read the file. But the problem is, if I rename any other file, say a .xml file or a .docx file to .csv and then try to read it, then this…
sudiptaasi
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Using ICU's UChar as a replacement for wchar?

Since I heard there are many problems with the wchar_t type (compiler-specific width), I was very interested by the International Components for Unicode project. But, ICU seems a bit heavier for my needs. I only need something that could provide an…
Punkfloyd
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Conversion between wchar_t char in ANSI Code Page

If I am in the ANSI codepage only environment. Does this conversion wide char to char: char ansi_cstr[size_of_ansi_str]; WideCharToMultiByte(CP_ACP, 0, ansi_wstr.c_str(), -1, ansi_str, size_of_ansi_str, 0, 0); std::string ansi_str =…
Chen OT
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Transform any signed char type into an unsigned one

template< typename charT > struct serializer { /* ... */ private: std::basic_string< charT > base64_encode( unsigned charT * bytes, unsigned length ); }; I would like the private member function to take an unsigned whatever-char-type. If…
qdii
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Testing for ascii characters whose value is > 127 in C

I have some data like this: 2s ²S 1/2 0 2p ²P° 1/2 160015 3/2 163990 3s ²S 1/2 1682700 3p ²P° 1/2 1726520 3/2 1727830 3d ²D 3/2 1743500 5/2 1743890 4s ²S 1/2 2252600 4p ²P° 3/2 2270150 1/2 2270150 4d ²D …
Mannix
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Converting char to wchar_t with less modification

Currently my project does not support UNICODE. I want to make it to convert all the char to wchar_t. My project has the mix of both char and wchar_t. Basically one class I needed now to modify its arguments which is leading to more changes. Kindly…
user1581317
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undo escape sequence "\" before unicode char

I use a console program (cmd call) for translating a string from the standard input into a string in special Unicode characters, received from the standard output. The returning string in C# escapes the escaping backslash before the Unicode…
Jens Bornschein
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wchar implementation of a simple Caesar cipher in C

I am writing a simple Caesar implementation for Amharic- one of the languages widely spoken in Ethiopia. Here is the code main(){ setlocale(LC_ALL, " "); int i, key=0; wchar_t message[20]; wprintf(L"Enter…
Tadele T
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Dynamically creating "LPCWSTR" variable from std::string variable

Currently I have the code (typedef _Null_terminated_ CONST WCHAR *LPCWSTR;): LPCWSTR wchar_string(L"ABC"); But need to enable something like this: std::string s("ABC"); ... LPCWSTR wchar_string(/* create somehow from variable s */);
Oleg Shirokikh
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How to replace character in TCHAR string

I have a TCHAR string which contains a path. I need to replace all occurences, if any, of / with \ in the path. The variable holding the path is defined as follows: TCHAR mypath[1024]; If mypath contains C:/new/newfile/a.txt, then I would need the…
SoDa
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Convert WCHAR * to UNICODE STRING

First try at windows driver development. How can I convert a WCHAR array (coming from user-space) to a UNICODE_STRING (in kernel mode) assuming that the WCHAR array is not null-terminated? Should I verify if it ends with null and if it doesn't…
user1782427
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What is the easiest way to convert a char array to a WCHAR array?

In my code, I receive a const char array like the following: const char * myString = someFunction(); Now I want to postprocess it as a wchar array since the functions I use afterwards don't handle narrow strings. What is the easiest way to…
Etan
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error when use array wchar

I have a variable with type wchar (szDrive), now i want to have a array and element of it has type wchar. Here is some my code: typedef struct array_wchar{ WCHAR array_char[5]; }; array_wchar array_driveName0[10]; int array_driveName_index0…
Cuong
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wcslen returns bad length when using -fshort-wchar

Source code: const wchar_t* x = L"abc"; printf("%d\n",wcslen(x)); I compiled this with g++ -fshort-wchar xxx.cpp -o xxx, and I get 15 as the result. Why?
bill wang
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Looping through an Array Pointer?

I'm not very experienced with C++, and I was reading through some code and wanted to know how this made sense... WCHAR *Process[128]; for(i=0; i
JimmySmithJR
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