1 files changed, 51 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/format/multattr-1.c b/gcc/testsuite/gcc.dg/format/multattr-1.c
new file mode 100644
index 000000000..c7404bedf
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/format/multattr-1.c
@@ -0,0 +1,51 @@
+/* Test for multiple format attributes.  Test for printf and scanf attributes
+   together.  */
+/* Origin: Joseph Myers <jsm28@cam.ac.uk> */
+/* { dg-do compile } */
+/* { dg-options "-std=gnu99 -Wformat" } */
+
+#define DONT_GNU_PROTOTYPE
+#include "format.h"
+
+/* If we specify multiple attributes for a single function, they should
+   all apply.  This should apply whether they are on the same declaration
+   or on different declarations.  */
+
+extern void my_vprintf_scanf (const char *, va_list, const char *, ...)
+     __attribute__((__format__(gnu_attr___printf__, 1, 0)))
+     __attribute__((__format__(gnu_attr___scanf__, 3, 4)));
+
+extern void my_vprintf_scanf2 (const char *, va_list, const char *, ...)
+     __attribute__((__format__(gnu_attr___scanf__, 3, 4)))
+     __attribute__((__format__(gnu_attr___printf__, 1, 0)));
+
+extern void my_vprintf_scanf3 (const char *, va_list, const char *, ...)
+     __attribute__((__format__(gnu_attr___printf__, 1, 0)));
+extern void my_vprintf_scanf3 (const char *, va_list, const char *, ...)
+     __attribute__((__format__(gnu_attr___scanf__, 3, 4)));
+
+extern void my_vprintf_scanf4 (const char *, va_list, const char *, ...)
+     __attribute__((__format__(gnu_attr___scanf__, 3, 4)));
+extern void my_vprintf_scanf4 (const char *, va_list, const char *, ...)
+     __attribute__((__format__(gnu_attr___printf__, 1, 0)));
+
+void
+foo (va_list ap, int *ip, long *lp)
+{
+  my_vprintf_scanf ("%d", ap, "%d", ip);
+  my_vprintf_scanf ("%d", ap, "%ld", lp);
+  my_vprintf_scanf ("%", ap, "%d", ip); /* { dg-warning "format" "printf" } */
+  my_vprintf_scanf ("%d", ap, "%ld", ip); /* { dg-warning "format" "scanf" } */
+  my_vprintf_scanf2 ("%d", ap, "%d", ip);
+  my_vprintf_scanf2 ("%d", ap, "%ld", lp);
+  my_vprintf_scanf2 ("%", ap, "%d", ip); /* { dg-warning "format" "printf" } */
+  my_vprintf_scanf2 ("%d", ap, "%ld", ip); /* { dg-warning "format" "scanf" } */
+  my_vprintf_scanf3 ("%d", ap, "%d", ip);
+  my_vprintf_scanf3 ("%d", ap, "%ld", lp);
+  my_vprintf_scanf3 ("%", ap, "%d", ip); /* { dg-warning "format" "printf" } */
+  my_vprintf_scanf3 ("%d", ap, "%ld", ip); /* { dg-warning "format" "scanf" } */
+  my_vprintf_scanf4 ("%d", ap, "%d", ip);
+  my_vprintf_scanf4 ("%d", ap, "%ld", lp);
+  my_vprintf_scanf4 ("%", ap, "%d", ip); /* { dg-warning "format" "printf" } */
+  my_vprintf_scanf4 ("%d", ap, "%ld", ip); /* { dg-warning "format" "scanf" } */
+}