From 703d863a48f549b2626382eda407ffae779f8725 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Wed, 7 Dec 2022 12:58:58 +0100
Subject: Trivial changes from the lazy-trees branch

---
 src/libutil/logging.hh | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'src/libutil/logging.hh')

diff --git a/src/libutil/logging.hh b/src/libutil/logging.hh
index d0817b4a9..4642c49f7 100644
--- a/src/libutil/logging.hh
+++ b/src/libutil/logging.hh
@@ -82,7 +82,7 @@ public:
         log(lvlInfo, fs);
     }
 
-    virtual void logEI(const ErrorInfo &ei) = 0;
+    virtual void logEI(const ErrorInfo & ei) = 0;
 
     void logEI(Verbosity lvl, ErrorInfo ei)
     {
@@ -225,7 +225,11 @@ inline void warn(const std::string & fs, const Args & ... args)
     logger->warn(f.str());
 }
 
-void warnOnce(bool & haveWarned, const FormatOrString & fs);
+#define warnOnce(haveWarned, args...) \
+    if (!haveWarned) {                \
+        haveWarned = true;            \
+        warn(args);                   \
+    }
 
 void writeToStderr(std::string_view s);
 
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