clearerr() prototype
void clearerr(FILE* stream);
It is defined in <cstdio> header file.
clearerr() Parameters
stream: The file stream to reset the error flags and EOF indicator.
clearerr() Return value
None.
Example: How clearerr() function works
#include <iostream>
#include <cstdio>
using namespace std;
int main ()
{
int ch;
FILE* fp;
fp = fopen("file.txt","w");
if(fp)
{
ch = getc(fp);
if(ferror(fp))
{
cout << "Error set" << endl;
clearerr (fp);
}
}
if(!ferror(fp))
cout << "Error reset";
fclose (fp);
return 0;
}
When you run the program, the output will be:
Error set Error reset
