#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");
}
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