From 1958afca337336d0e442f0fa2573fd2d588b0234 Mon Sep 17 00:00:00 2001
From: SASANO Takayoshi <uaa@uaa.org.uk>
Date: Sun, 7 Apr 2019 14:04:29 +0900
Subject: [PATCH] isdigit() returns zero or "non-zero" value, not zero or
 "one". This causes building xlxd with gcc makes no problem, but with clang
 makes "Read 0 DMR id" message at boot.

---
 src/cdmriddir.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/cdmriddir.cpp b/src/cdmriddir.cpp
index 5d62db3..9887d2f 100644
--- a/src/cdmriddir.cpp
+++ b/src/cdmriddir.cpp
@@ -152,7 +152,10 @@ bool CDmridDir::IsValidDmrid(const char *sz)
         ok = true;
         for ( size_t i = 0; (i < n) && ok; i++ )
         {
-            ok &= ::isdigit(sz[i]);
+            if ( !::isdigit(sz[i]) )
+            {
+                ok = false;
+            }
         }
     }
     return ok;