From 0e106df04ca270f062aeb725f8b43e815a8308f7 Mon Sep 17 00:00:00 2001
From: yhirose <yuji.hirose.bug@gmail.com>
Date: Thu, 23 Jan 2020 15:51:22 -0500
Subject: [PATCH] Fix #79

---
 peglib.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/peglib.h b/peglib.h
index 087e31a..49f7232 100644
--- a/peglib.h
+++ b/peglib.h
@@ -451,7 +451,7 @@ inline std::pair<size_t, size_t> line_info(const char* start, const char* cur) {
 */
 #ifndef PEGLIB_NO_CONSTEXPR_SUPPORT
 inline constexpr unsigned int str2tag(const char* str, int h = 0) {
-    return !str[h] ? 5381 : (str2tag(str, h + 1) * 33) ^ static_cast<unsigned char>(str[h]);
+    return (*str == '\0') ? h : str2tag(str + 1, (h * 33) ^ static_cast<unsigned char>(*str));
 }
 
 namespace udl {