1 /* Test for ungetc bugs. */
10 fputs ("test failed: " #x "\n", stderr); \
16 main (int argc, char *argv[])
25 fp = fopen (name, "w");
31 fp = fopen (name, "r");
33 assert (ungetc ('z', fp) == 'z');
34 assert (getc (fp) == 'z');
35 assert (getc (fp) == 'b');
36 assert (getc (fp) == 'l');
37 assert (ungetc ('m', fp) == 'm');
38 assert (getc (fp) == 'm');
39 assert ((c = getc (fp)) == 'a');
40 assert (getc (fp) == EOF);
41 assert (ungetc (c, fp) == c);
42 assert (feof (fp) == 0);
43 assert (getc (fp) == c);
44 assert (getc (fp) == EOF);
48 fp = fopen (name, "r");
50 assert (getc (fp) == 'b');
51 assert (getc (fp) == 'l');
52 assert (ungetc ('b', fp) == 'b');
53 assert (fread (buffer, 1, 64, fp) == 2);
54 assert (buffer[0] == 'b');
55 assert (buffer[1] == 'a');