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Clearerr

Item Value Header filestdio.h Declarationvoid clearerr(FILE *stream); FunctionReset (set to zero) the error flag. The end-of-file indicator is also reset. #include <stdio.h>   #include <stdlib.h>   int main(int argc, char *argv[]) {     FILE *in, *out;     char ch;     if((in=fopen("inFile.txt", "rb")) == NULL) {       printf("Cannot open input file.\n");       exit(1);     }     if((out=fopen("outFile.txt", "wb")) == NULL) {       printf("Cannot open output file.\n");       exit(1);     }     while(!feof(in)) {       ch = getc(in);       if(ferror(in)) {         printf("Read Error");         clearerr(in);         break;       } else {         if(!feof(in))           putc(ch, out);                   if(ferror(out)) {           printf("Write Error");           clearerr(out);           break;         }       }     }     fclose(in);     fclose(out);     return 0;   }