Add some noexcepts

This is to assert that callback functions should never throw (since
the context in which they're called may not be able to handle the
exception).

1 files changed, 2 insertions, 2 deletions

diff --git a/src/libutil/util.hh b/src/libutil/util.hh
index 686e81d3f893..07c3d28ff2d6 100644
--- a/src/libutil/util.hh
+++ b/src/libutil/util.hh
@@ -460,7 +460,7 @@ public:
         if (prev) done.test_and_set();
     }
 
-    void operator()(T && t)
+    void operator()(T && t) noexcept
     {
         auto prev = done.test_and_set();
         assert(!prev);
@@ -469,7 +469,7 @@ public:
         fun(promise.get_future());
     }
 
-    void rethrow(const std::exception_ptr & exc = std::current_exception())
+    void rethrow(const std::exception_ptr & exc = std::current_exception()) noexcept
     {
         auto prev = done.test_and_set();
         assert(!prev);