From c849b894edbf5bb170721e836bbef514fb74d074 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Sat, 8 Aug 2020 10:39:26 +0900
Subject: Reintroduce `mrb_static_assert`; #5051

Note that the home brew version of `mrb_static_assert` only works within
the function body.  This reverts commit 8f99689.
---
 src/string.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/string.c')

diff --git a/src/string.c b/src/string.c
index e8f81c0ae..78c41c5f3 100644
--- a/src/string.c
+++ b/src/string.c
@@ -2926,6 +2926,9 @@ mrb_init_string(mrb_state *mrb)
 {
   struct RClass *s;
 
+  mrb_static_assert(RSTRING_EMBED_LEN_MAX < (1 << MRB_STR_EMBED_LEN_BIT),
+                    "pointer size too big for embedded string");
+
   mrb->string_class = s = mrb_define_class(mrb, "String", mrb->object_class);             /* 15.2.10 */
   MRB_SET_INSTANCE_TT(s, MRB_TT_STRING);
 
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