20         fFile = fopen(name, "wb");  in FileOutputStream()
28         return nullptr != fFile;  in isValid()
34             if (EOF == fputc(b, fFile)) {  in write8()
35                 fFile = nullptr;  in write8()
43             if (EOF == fputs(s, fFile)) {  in writeText()
44                 fFile = nullptr;  in writeText()
51             size_t written = fwrite(s, 1, size, fFile);  in write()
53                 fFile = nullptr;  in write()
60         if (isValid() && fclose(fFile)) {  in close()
61             fFile = nullptr;  in close()
69     FILE *fFile;  variable