106     FILE* fp = 0;  in main()  local
112     ((void)fp); // Prevent unused warning  in main()
126     static_assert((std::is_same<decltype(fclose(fp)), int>::value), "");  in main()
127     static_assert((std::is_same<decltype(fflush(fp)), int>::value), "");  in main()
129     static_assert((std::is_same<decltype(freopen("", "", fp)), FILE*>::value), "");  in main()
130     static_assert((std::is_same<decltype(setbuf(fp,cp)), void>::value), "");  in main()
131     static_assert((std::is_same<decltype(vfprintf(fp,"",va)), int>::value), "");  in main()
132     static_assert((std::is_same<decltype(fprintf(fp," ")), int>::value), "");  in main()
133     static_assert((std::is_same<decltype(fscanf(fp,"")), int>::value), "");  in main()
143     static_assert((std::is_same<decltype(vfprintf(fp,"",va)), int>::value), "");  in main()
144     static_assert((std::is_same<decltype(vfscanf(fp,"",va)), int>::value), "");  in main()
154     static_assert((std::is_same<decltype(fgetc(fp)), int>::value), "");  in main()
155     static_assert((std::is_same<decltype(fgets(cp,0,fp)), char*>::value), "");  in main()
156     static_assert((std::is_same<decltype(fputc(0,fp)), int>::value), "");  in main()
157     static_assert((std::is_same<decltype(fputs("",fp)), int>::value), "");  in main()
158     static_assert((std::is_same<decltype(getc(fp)), int>::value), "");  in main()
167     static_assert((std::is_same<decltype(putc(0,fp)), int>::value), "");  in main()
170     static_assert((std::is_same<decltype(ungetc(0,fp)), int>::value), "");  in main()
171     static_assert((std::is_same<decltype(fread((void*)0,0,0,fp)), size_t>::value), "");  in main()
172     static_assert((std::is_same<decltype(fwrite((const void*)arr,1,0,fp)), size_t>::value), "");  in main()
174     static_assert((std::is_same<decltype(fgetpos(fp, &fpos)), int>::value), "");  in main()
176     static_assert((std::is_same<decltype(fseek(fp, 0,0)), int>::value), "");  in main()
178     static_assert((std::is_same<decltype(fsetpos(fp, &fpos)), int>::value), "");  in main()
180     static_assert((std::is_same<decltype(ftell(fp)), long>::value), "");  in main()
181     static_assert((std::is_same<decltype(rewind(fp)), void>::value), "");  in main()
182     static_assert((std::is_same<decltype(clearerr(fp)), void>::value), "");  in main()
183     static_assert((std::is_same<decltype(feof(fp)), int>::value), "");  in main()
184     static_assert((std::is_same<decltype(ferror(fp)), int>::value), "");  in main()