Get tests running with warnings. Fix warnings in headers and tests

llvm-svn: 228344

4 files changed, 10 insertions, 0 deletions

diff --git a/libcxx/test/std/utilities/time/time.clock/time.clock.hires/now.pass.cpp b/libcxx/test/std/utilities/time/time.clock/time.clock.hires/now.pass.cpp
index 0bcd99d76ad..ab67cd838f9 100644
--- a/libcxx/test/std/utilities/time/time.clock/time.clock.hires/now.pass.cpp
+++ b/libcxx/test/std/utilities/time/time.clock/time.clock.hires/now.pass.cpp
@@ -14,9 +14,13 @@
 // static time_point now();
 
 #include <chrono>
+#include <cassert>
 
 int main()
 {
     typedef std::chrono::high_resolution_clock C;
     C::time_point t1 = C::now();
+    assert(t1.time_since_epoch().count() != 0);
+    assert(C::time_point::min() < t1);
+    assert(C::time_point::max() > t1);
 }
diff --git a/libcxx/test/std/utilities/time/time.clock/time.clock.system/from_time_t.pass.cpp b/libcxx/test/std/utilities/time/time.clock/time.clock.system/from_time_t.pass.cpp
index 9b12a667ffd..f4a454f5780 100644
--- a/libcxx/test/std/utilities/time/time.clock/time.clock.system/from_time_t.pass.cpp
+++ b/libcxx/test/std/utilities/time/time.clock/time.clock.system/from_time_t.pass.cpp
@@ -20,4 +20,5 @@ int main()
 {
     typedef std::chrono::system_clock C;
     C::time_point t1 = C::from_time_t(C::to_time_t(C::now()));
+    ((void)t1);
 }
diff --git a/libcxx/test/std/utilities/time/time.clock/time.clock.system/now.pass.cpp b/libcxx/test/std/utilities/time/time.clock/time.clock.system/now.pass.cpp
index 60530fdf3a9..ebc0db80b64 100644
--- a/libcxx/test/std/utilities/time/time.clock/time.clock.system/now.pass.cpp
+++ b/libcxx/test/std/utilities/time/time.clock/time.clock.system/now.pass.cpp
@@ -14,9 +14,13 @@
 // static time_point now();
 
 #include <chrono>
+#include <cassert>
 
 int main()
 {
     typedef std::chrono::system_clock C;
     C::time_point t1 = C::now();
+    assert(t1.time_since_epoch().count() != 0);
+    assert(C::time_point::min() < t1);
+    assert(C::time_point::max() > t1);
 }
diff --git a/libcxx/test/std/utilities/time/time.clock/time.clock.system/to_time_t.pass.cpp b/libcxx/test/std/utilities/time/time.clock/time.clock.system/to_time_t.pass.cpp
index 2a82d5375e1..c4028063bc5 100644
--- a/libcxx/test/std/utilities/time/time.clock/time.clock.system/to_time_t.pass.cpp
+++ b/libcxx/test/std/utilities/time/time.clock/time.clock.system/to_time_t.pass.cpp
@@ -20,4 +20,5 @@ int main()
 {
     typedef std::chrono::system_clock C;
     std::time_t t1 = C::to_time_t(C::now());
+    ((void)t1);
 }