On this StackExchange topic, first answer and last comment upon that answer, I learned to assign the contents of my char array (which I just read from file) into my vector. The following code works fine in Windows XP, 32-bit, Visual Studio 2010, but fails in Win10, 64-bit, Studio 2012. Both projects use the Unicode character set. The contents of the file myConfig.txt are (separated by tabs):
words 3 mobius lagrange gauss
I am a complete noob, so if some mistake seems too stupid for anyone to make, go ahead and assume I made it.
The code:
#include "stdafx.h"
#include <windows.h>
#include <vector>
#include <iterator>
#include <string.h>
#include <wchar.h>
#include <tchar.h>
using namespace std;
vector<wchar_t> wvec;
int n;
wchar_t ss[256];
FILE* pfile;
int _tmain(int argc, _TCHAR* argv[])
{
fopen_s(&pfile,"myConfig.txt","r");
fwscanf_s(pfile,L"%ls",&ss);
wprintf(L"var name is %ls\n",ss);
fwscanf_s(pfile,L"%d",&n);
printf("num words is %d\n",n);
for (int i=0; i<3; i++) {
fwscanf_s(pfile,L"%ls",&ss);
wvec.clear();
n=wcslen(ss);
wprintf(L"vec empty %ls length %d\n",vec,vec.size());
wvec.assign(ss,ss+n+1); // +1 to contain null char
wprintf(L"vec sz %d filled %ls\n",wvec.size(),wvec);
}
printf("press Enter to finish\n");
getchar();
return 0;
}
On the Win10 machine, the output says, in part, "vec sz 7 filled ???", when I run/debug from the development environment. When I run the exe in the x64\Release folder, the corresponding line of output says "vec sz 5 filled ???", while the contents of myConfig.txt are exactly the same.
On the XP machine, the output is perfect.
