file io - C++ FileIO weird behaviour -

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while writing program came accross strange behaviour of std::ofstream. please refer code below

ofstream dire; dire.open("dir.txt", std::ios::out);  // other code  for(int i=0;i<dir.size();i++) {     dire << dir[i] << "\t"; // dir integer vector containing values between 0-9 }

now when open dir.txt contents are:

ऴऴऴऴवववववववववशशशशशशशशशशषषषषषषषषरररररररऱऱऱऱऱऱऱऱऱललललललललललललळ.. , on

if give space , tab(\t) works correctly or matter \n works correctly. dire << dir[i] << " \t";

and output is: 

4   4   4   4   5   5   5   5   5   5.. , on

i tried dire.flush() flush output buffer file, still same result.

i can away using \t learn why happening.

if using notepad @ file bug bush hid facts can problem.

the bug occurs when string passed win32 charset detection function istextunicode no other characters. istextunicode sees thinks valid utf-16le chinese , returns true, , application incorrectly interprets text utf-16le.


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