c++ - Unwanted Carriage Returns in ofstream -

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this question has answer here:

the following c++ code:

ofstream out("file.txt"); const char *str = "0\r\n1\r\n2\r\n"; out << str;

creates following file (file.txt above):

file.txt content

why there cr's , lf's? platform windows 7 , compiler vs 2013.

the situation above cause problem of program parse file line line , program assumes every line contain data. remove empty lines want understand why when str saved, there cr's , lf's.

\n outputs platform-specific newline, in case each \n written \r\n. not need manually add own \r, source of duplication.


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