1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/other/warning1.C b/gcc/testsuite/g++.dg/other/warning1.C
new file mode 100644
index 000000000..77653a1df
--- /dev/null
+++ b/gcc/testsuite/g++.dg/other/warning1.C
@@ -0,0 +1,19 @@
+// { dg-do compile }
+
+// PR c++/7804
+// Floating point formatting in error and warning messages
+
+extern "C" int printf(const char *, ...);
+
+struct S
+{
+  static const float inf = 1.0f / 0.0f; // { dg-warning "1.0|float|initialization" }
+  static const float nan = 0.0f / 0.0f; // { dg-warning "0.0|float|initialization" }
+};
+
+int main()
+{
+  // { dg-prune-output "not a member" }
+  printf("%f\n%f\n", S::inf, S::nan);
+  return 0;
+}