/* Conformance Test 17.16.0.1: Verification of tmpfile function */ #include struct S { int i; float f; char c; }; int main (void) { struct S s [3] = { 1, 1.0, 'a', 2, 2.0, 'b', 3, 3.0, 'c' }; struct S buff [3]; FILE *f1, *f2, *f3; int i; /* Create 3 temp files and write the elements to the files. */ f1 = tmpfile (); if (f1 == NULL) goto Fail1; i = fwrite ((void *) s, sizeof (struct S), 3, f1); if (i != 3) goto Fail; f2 = tmpfile (); if (f2 == NULL) goto Fail1; i = fwrite ((void *) s, sizeof (struct S), 3, f2); if (i != 3) goto Fail; f3 = tmpfile (); if (f3 == NULL) goto Fail1; i = fwrite ((void *) s, sizeof (struct S), 3, f3); if (i != 3) goto Fail; /* Read the elements from the files. */ rewind (f1); i = fread ((void *) buff, sizeof (struct S), 3, f1); if (i != 3) goto Fail; if ((s [0].i != 1) || (s [1].i != 2) || (s [2].i != 3)) goto Fail; if ((s [0].f != 1.0) || (s [1].f != 2.0) || (s [2].f != 3.0)) goto Fail; if ((s [0].c != 'a') || (s [1].c != 'b') || (s [2].c != 'c')) goto Fail; rewind (f2); i = fread ((void *) buff, sizeof (struct S), 3, f2); if (i != 3) goto Fail; if ((s [0].i != 1) || (s [1].i != 2) || (s [2].i != 3)) goto Fail; if ((s [0].f != 1.0) || (s [1].f != 2.0) || (s [2].f != 3.0)) goto Fail; if ((s [0].c != 'a') || (s [1].c != 'b') || (s [2].c != 'c')) goto Fail; rewind (f2); i = fread ((void *) buff, sizeof (struct S), 3, f2); if (i != 3) goto Fail; if ((s [0].i != 1) || (s [1].i != 2) || (s [2].i != 3)) goto Fail; if ((s [0].f != 1.0) || (s [1].f != 2.0) || (s [2].f != 3.0)) goto Fail; if ((s [0].c != 'a') || (s [1].c != 'b') || (s [2].c != 'c')) goto Fail; i = fclose (f1); /* close the files and quit */ if (i == EOF) goto Fail2; i = fclose (f2); if (i == EOF) goto Fail2; i = fclose (f3); if (i == EOF) goto Fail2; printf ("Passed Conformance Test 17.16.0.1\n"); return 0; Fail: printf ("Failed Conformance Test 17.16.0.1\n"); return 0; Fail1: printf ("Unable to open temp file for Conformance Test 17.16.0.1\n"); return 0; Fail2: printf ("Unable to close output file for Conformance Test 17.16.0.1\n"); return 0; }