1 files changed, 4 insertions, 0 deletions
diff --git a/src/util/check.h b/src/util/check.h
index b6c03bed2a..b791944502 100644
--- a/src/util/check.h
+++ b/src/util/check.h
@@ -10,12 +10,16 @@
 #include <stdexcept>
 #include <utility>
 
+std::string StrFormatInternalBug(const char* msg, const char* file, int line, const char* func);
+
 class NonFatalCheckError : public std::runtime_error
 {
 public:
     NonFatalCheckError(const char* msg, const char* file, int line, const char* func);
 };
 
+#define STR_INTERNAL_BUG(msg) StrFormatInternalBug((msg), __FILE__, __LINE__, __func__)
+
 /** Helper for CHECK_NONFATAL() */
 template <typename T>
 T&& inline_check_non_fatal(LIFETIMEBOUND T&& val, const char* file, int line, const char* func, const char* assertion)