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-rw-r--r--gcc/testsuite/gcc.dg/c2x-fordecl-4.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/c2x-fordecl-4.c b/gcc/testsuite/gcc.dg/c2x-fordecl-4.c
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index 00000000000..e9dfc4b51fa
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/c2x-fordecl-4.c
@@ -0,0 +1,14 @@
+/* Test for C99 declarations in for loops. Test constraints are diagnosed with
+ -Wc11-c2x-compat for C2X: struct and union tags can't be declared there
+ (affirmed in response to DR#277). Based on c99-fordecl-3.c. */
+/* { dg-do compile } */
+/* { dg-options "-std=c2x -pedantic-errors -Wc11-c2x-compat" } */
+
+void
+foo (void)
+{
+ for (struct s { int p; } *p = 0; ;) /* { dg-warning "'struct s' declared in 'for' loop initial declaration" } */
+ ;
+ for (union u { int p; } *p = 0; ;) /* { dg-warning "'union u' declared in 'for' loop initial declaration" } */
+ ;
+}