From 50fbd00e76f2a7a6ed17e73605fa69ce80cafb01 Mon Sep 17 00:00:00 2001
From: Sutou Kouhei <kou@clear-code.com>
Date: Sat, 27 Jun 2020 07:10:37 +0900
Subject: [ruby/fiddle] Use "do { } while (0)" to ensure requiring ";"

https://github.com/ruby/fiddle/commit/2155ae5979
---
 ext/fiddle/function.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/ext/fiddle/function.c b/ext/fiddle/function.c
index b624255f27..95648d3c96 100644
--- a/ext/fiddle/function.c
+++ b/ext/fiddle/function.c
@@ -19,14 +19,14 @@ VALUE cFiddleFunction;
 #define Check_Max_Args_Long(name, len) \
     Check_Max_Args_(name, len, "l")
 #define Check_Max_Args_(name, len, fmt) \
-    if ((size_t)(len) < MAX_ARGS) { \
-	/* OK */ \
-    } \
-    else { \
-	rb_raise(rb_eTypeError, \
-		 name" is so large that it can cause integer overflow (%"fmt"d)", \
-		 (len)); \
-    }
+    do { \
+        if ((size_t)(len) >= MAX_ARGS) { \
+            rb_raise(rb_eTypeError, \
+                     "%s is so large " \
+                     "that it can cause integer overflow (%"fmt"d)", \
+                     (name), (len)); \
+        } \
+    } while (0)
 
 static void
 deallocate(void *p)
-- 
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