* c-format.c (CPLUSPLUS_STD_VER): Define to STD_C94.

testsuite:
	* g++.dg/warn/format1.C: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@45941 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 15 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/warn/format1.C b/gcc/testsuite/g++.dg/warn/format1.C
new file mode 100644
index 00000000000..27bc414b098
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/format1.C
@@ -0,0 +1,15 @@
+// Test that formats get checked according to C94.
+// Origin: Joseph Myers <jsm28@cam.ac.uk>.
+// { dg-do compile }
+// { dg-options "-ansi -pedantic -Wformat" }
+
+#include <cstdio>
+
+void
+foo (int i, int *ip, __WINT_TYPE__ lc, wchar_t *ls)
+{
+  std::printf ("%d%ls%lc\n", i, ls, lc);
+  std::printf ("%d", ls); // { dg-warning "format" "printf warning" }
+  std::scanf ("%d%lc%ls%l[abc]", ip, ls, ls, ls);
+  std::scanf ("%hd", ip); // { dg-warning "format" "scanf warning" }
+}