1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/rtlil.h b/kernel/rtlil.h
index 6529603eb..502969a1f 100644
--- a/kernel/rtlil.h
+++ b/kernel/rtlil.h
@@ -162,11 +162,7 @@ namespace RTLIL
 			*this = id;
 		}
 
-		const char*c_str() const {
-			return global_id_storage_.at(index_);
-		}
-
-		operator const char*() const {
+		const char *c_str() const {
 			return global_id_storage_.at(index_);
 		}
 
@@ -193,6 +189,10 @@ namespace RTLIL
 			return c_str()[i];
 		}
 
+		char operator[](size_t i) const {
+			return c_str()[i];
+		}
+
 		std::string substr(size_t pos = 0, size_t len = std::string::npos) const {
 			if (len == std::string::npos || len >= strlen(c_str() + pos))
 				return std::string(c_str() + pos);