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From: Jonathan Wakely <redi@gcc.gnu.org>
To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org
Subject: [gcc r12-5058] libstdc++: Make test print which random_device tokens
 work
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https://gcc.gnu.org/g:95e8fcd3d50cbf5bf8a211afeafdf640ed86a015

commit r12-5058-g95e8fcd3d50cbf5bf8a211afeafdf640ed86a015
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Tue Nov 9 15:11:11 2021 +0000

    libstdc++: Make test print which random_device tokens work
    
    libstdc++-v3/ChangeLog:
    
            * testsuite/26_numerics/random/random_device/cons/token.cc:
            Print results of random_device_available checks.

Diff:
---
 .../testsuite/26_numerics/random/random_device/cons/token.cc       | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/libstdc++-v3/testsuite/26_numerics/random/random_device/cons/token.cc b/libstdc++-v3/testsuite/26_numerics/random/random_device/cons/token.cc
index e56afbc9c97..813db73873c 100644
--- a/libstdc++-v3/testsuite/26_numerics/random/random_device/cons/token.cc
+++ b/libstdc++-v3/testsuite/26_numerics/random/random_device/cons/token.cc
@@ -24,6 +24,7 @@
 
 #include <random>
 #include <stdexcept>
+#include <cstdio>
 #include <testsuite_hooks.h>
 #include <testsuite_random.h>
 
@@ -59,8 +60,14 @@ test03()
   int count = 0;
   for (const std::string& token : tokens)
   {
+    std::printf("checking std::random_device(\"%s\"):\t", token.c_str());
     if (__gnu_test::random_device_available(token))
+    {
+      std::puts("yes");
       ++count;
+    }
+    else
+      std::puts("no");
   }
   VERIFY( count != 0 );
 }