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      std::clearerr

      From cppreference.com
      <cpp‎ |io‎ |c
       
       
       
       
      Defined in header<cstdio>
      void clearerr(std::FILE* stream);

      Resets the error flags and theEOF indicator for the given file stream.

      Contents

      [edit]Parameters

      stream - the file to reset the error flags for

      [edit]Return value

      (none)

      [edit]Example

      Run this code
      #include <cassert>#include <cstdio> int main(){std::FILE* tmpf=std::tmpfile();std::fputs("cppreference.com\n", tmpf);std::rewind(tmpf); for(int ch;(ch=std::fgetc(tmpf))!=EOF;std::putchar(ch)){} assert(std::feof(tmpf));// the loop is expected to terminate by EOFstd::puts("End of file reached");     std::clearerr(tmpf);// clear EOF std::puts(std::feof(tmpf)?"EOF indicator set":"EOF indicator cleared");}

      Output:

      cppreference.comEnd of file reachedEOF indicator cleared

      [edit]See also

      checks for the end-of-file
      (function)[edit]
      displays a character string corresponding of the current error tostderr
      (function)[edit]
      checks for a file error
      (function)[edit]
      C documentation forclearerr
      Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/io/c/clearerr&oldid=142555"

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