1 /* Test for format checking of conditional expressions. */
2 /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
3 /* { dg-do compile } */
4 /* { dg-options "-std=gnu99 -Wformat" } */
6 #define NULL ((void *)0)
8 extern int printf (const char *, ...);
11 foo (long l, int nfoo)
13 printf ((nfoo > 1) ? "%d foos" : "%d foo", nfoo);
14 printf ((l > 1) ? "%d foos" : "%d foo", l); /* { dg-warning "int format" "wrong type in conditional expr" } */
15 printf ((l > 1) ? "%ld foos" : "%d foo", l); /* { dg-warning "int format" "wrong type in conditional expr" } */
16 printf ((l > 1) ? "%d foos" : "%ld foo", l); /* { dg-warning "int format" "wrong type in conditional expr" } */
17 /* Should allow one case to have extra arguments. */
18 printf ((nfoo > 1) ? "%d foos" : "1 foo", nfoo);
19 printf ((nfoo > 1) ? "many foos" : "1 foo", nfoo); /* { dg-warning "too many" "too many args in all branches" } */
20 printf ((nfoo > 1) ? "%d foos" : "", nfoo);
21 printf ((nfoo > 1) ? "%d foos" : ((nfoo > 0) ? "1 foo" : "no foos"), nfoo);
22 printf ((nfoo > 1) ? "%d foos" : ((nfoo > 0) ? "%d foo" : "%d foos"), nfoo);
23 printf ((nfoo > 1) ? "%d foos" : ((nfoo > 0) ? "%d foo" : "%ld foos"), nfoo); /* { dg-warning "long int format" "wrong type" } */
24 printf ((nfoo > 1) ? "%ld foos" : ((nfoo > 0) ? "%d foo" : "%d foos"), nfoo); /* { dg-warning "long int format" "wrong type" } */
25 printf ((nfoo > 1) ? "%d foos" : ((nfoo > 0) ? "%ld foo" : "%d foos"), nfoo); /* { dg-warning "long int format" "wrong type" } */
26 /* Extra arguments to NULL should be complained about. */
27 printf (NULL, "foo"); /* { dg-warning "too many" "NULL extra args" } */
28 /* { dg-warning "null" "null format arg" { target *-*-* } 27 } */