the program crushed with empty file write error message. about poissonrecon HOT 2 OPEN

After replace _mktemp( fileName ); with an auto-increment integer string, the problem fixed. So I'm pretty sure the problem is the same as this one: #101

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I was recently informed that switching the code:
_mktemp( fileName );
fp = fopen( fileName , "w+b" );
if( !fp ) ERROR_OUT( "Failed to open file: " , fileName );

with:
errno_t err = tmpfile_s(&fp);
if (err != 0)
{
std::cerr << "tmpfile_s failed with error: " << err << std::endl;
ERROR_OUT("Failed to create a unique temporary file.");
}

resolves the problem. I have not had a chance to try it out yet (but I am also not generating the error).
Not sure why this is issue has started surfacing recently.

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