std::clearerr
From cppreference.com
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clearerr
Operations on files
Defined in header
<cstdio>
void clearerr( std::FILE * stream );
Resets the error flags and the EOF 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 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
[edit] See also
C documentation for clearerr