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std::clearerr(3)	      C++ Standard Libary	      std::clearerr(3)

NAME
       std::clearerr - std::clearerr

Synopsis
	  Defined in header <cstdio>
	  void clearerr( std::FILE* stream );

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

Parameters
	  stream - the file to reset the error flags for

Return value
	  (none)

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
       EOF
	    std::puts("End of file reached");

	    std::clearerr(tmpf); // clear EOF

	    std::puts(std::feof(tmpf) ?	"EOF indicator set"
				      :	"EOF indicator cleared");
	}

Output:
	cppreference.com
	End of file reached
	EOF indicator cleared

See also
	  feof	 checks	for the	end-of-file
		 (function)
	  perror  displays a character string corresponding of the current er-
       ror to stderr
		 (function)
	  ferror checks	for a file error
		 (function)
	  C documentation for
	  clearerr

http://cppreference.com		  2024.06.10		      std::clearerr(3)

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