12 #define TEST_E(f) ( (errno = 0), (f) || \  macro
32 	TEST_E(f = open_memstream(&s, &l));  in main()
33 	TEST_E(putc('a', f) == 'a');  in main()
34 	TEST_E(putc('b', f) == 'b');  in main()
35 	TEST_E(putc('c', f) == 'c');  in main()
36 	TEST_E(!fflush(f));  in main()
42 	TEST_E(f = open_memstream(&s, &l));  in main()
43 	TEST_E(fseek(f,1,SEEK_CUR)>=0);  in main()
44 	TEST_E(putc('q', f) == 'q');  in main()
45 	TEST_E(!fflush(f));  in main()
50 	TEST_E(fseek(f,-2,SEEK_CUR)>=0);  in main()
51 	TEST_E(putc('e', f) == 'e');  in main()
52 	TEST_E(!fflush(f));  in main()
57 	TEST_E(f = fmemopen(buf, 10, "r+"));  in main()
58 	TEST_E(fputs("hello", f) >= 0);  in main()
59 	TEST_E(fputc(0, f)==0);  in main()
60 	TEST_E(fseek(f, 0, SEEK_SET)>=0);  in main()
62 	TEST_E(fscanf(f, "hello%n", &i)==0);  in main()
72 	TEST_E(f = fmemopen(buf, 10, "a+"));  in main()
74 	TEST_E(fseek(f, 0, SEEK_SET)>=0);  in main()
81 	TEST_E(fseek(f, 6, SEEK_SET)>=0);  in main()
85 	TEST_E(fseek(f, 0, SEEK_SET)>=0);  in main()
87 	TEST_E(fseek(f, 0, SEEK_CUR)>=0);  in main()
89 	TEST_E(fprintf(f, "%d", i)==3);  in main()
90 	TEST_E(fflush(f)==0);  in main()