[gcc(refs/vendors/redhat/heads/gcc-10-branch)] coroutines, testsuite: Fix symmetric-transfer-00-basic.C on Linux.

[Jakub Jelinek]

https://gcc.gnu.org/g:65937db83cd62daef230ece2d92f23f01fb90927

commit 65937db83cd62daef230ece2d92f23f01fb90927
Author: Iain Sandoe <iain@sandoe.co.uk>
Date:   Fri Mar 27 00:12:01 2020 +0000

    coroutines, testsuite: Fix symmetric-transfer-00-basic.C on Linux.
    
    In order for the test output to work we need to include
    cstdio.
    
    2020-03-27  Iain Sandoe  <iain@sandoe.co.uk>
    
            * g++.dg/coroutines/torture/symmetric-transfer-00-basic.C:
            Add <cstdio>.

Diff:
---
 gcc/testsuite/ChangeLog                                              | 5 +++++
 .../g++.dg/coroutines/torture/symmetric-transfer-00-basic.C          | 5 +++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 45b19d5061e..4cbfdcafa99 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2020-03-27 Iain Sandoe <iain@sandoe.co.uk>
+
+	* g++.dg/coroutines/torture/symmetric-transfer-00-basic.C:
+	Add <cstdio>.
+
 2020-03-26  Marek Polacek  <polacek@redhat.com>
 
 	DR 1710
diff --git a/gcc/testsuite/g++.dg/coroutines/torture/symmetric-transfer-00-basic.C b/gcc/testsuite/g++.dg/coroutines/torture/symmetric-transfer-00-basic.C
index c445fc55a2c..864846e365c 100644
--- a/gcc/testsuite/g++.dg/coroutines/torture/symmetric-transfer-00-basic.C
+++ b/gcc/testsuite/g++.dg/coroutines/torture/symmetric-transfer-00-basic.C
@@ -18,7 +18,8 @@ namespace coro = std::experimental;
 
 #include <chrono>
 #include <thread>
- 
+#include <cstdio>
+
 template <typename T> 
 struct Loopy {
   struct promise_type;
@@ -84,7 +85,7 @@ pingpong (const char *id)
       v = co_await aw;
       //fprintf (stderr, "%s = %d\n", id, v);
     }
- fprintf (stderr, "%s = %d\n", id, v);
+ //fprintf (stderr, "%s = %d\n", id, v);
 }
 
 int main ()