Fix #1680

5 years ago · 54a8259b42
parent 32b6f1619f
commit 54a8259b42
1 changed files with 5 additions and 2 deletions
--- a/include/spdlog/cfg/env.h
+++ b/include/spdlog/cfg/env.h
@ -28,8 +28,11 @@ namespace cfg {
 inline void load_env_levels()
 {
    auto env_val = details::os::getenv("SPDLOG_LEVEL");
-    auto levels = helpers::extract_levels(env_val);
+    if (!env_val.empty())
-    details::registry::instance().update_levels(std::move(levels));
+    {
        auto levels = helpers::extract_levels(env_val);
        details::registry::instance().update_levels(std::move(levels));
    }
 }
 } // namespace cfg