#include <stdio.h>
int main()
{
FILE *fp;
int d;
int c = 7;
fp = fopen("file.txt", "r");
fputc(c,fp);
if(ferror(fp))
{
perror("");
}
d = (ferror(fp));
printf("%d",d);
return(0);
}
int main()
{
FILE *fp;
int d;
int c = 7;
fp = fopen("file.txt", "r");
fputc(c,fp);
if(ferror(fp))
{
perror("");
}
d = (ferror(fp));
printf("%d",d);
return(0);
}
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