[utils] Bind std::isspace safely

canonical · Oct 30, 2023 · e118b9a · e118b9a
1 parent 93bbdeb
commit e118b9a
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/include/multipass/utils.h b/include/multipass/utils.h
@@ -242,7 +242,8 @@ class Utils : public Singleton<Utils>
 
 namespace multipass::utils::detail
 {
-inline constexpr auto is_space = static_cast<int (*)(int)>(std::isspace);
+// see https://en.cppreference.com/w/cpp/string/byte/isspace#Notes
+inline constexpr auto is_space = [](unsigned char c) { return std::isspace(c); };
 }
 
 template <typename Str, typename Filter>