From 02c32b2e9299726e20bb4499fa7c1f5430ce0b6d Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Sun, 29 Nov 2020 15:01:41 +0900
Subject: Get rid of allocation when the capacity is small

---
 string.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'string.c')

diff --git a/string.c b/string.c
index 6abfcd33f8..b33d83caaf 100644
--- a/string.c
+++ b/string.c
@@ -1351,6 +1351,7 @@ rb_str_buf_new(long capa)
 {
     VALUE str = str_alloc(rb_cString);
 
+    if (capa <= RSTRING_EMBED_LEN_MAX) return str;
     if (capa < STR_BUF_MIN_SIZE) {
 	capa = STR_BUF_MIN_SIZE;
     }
-- 
cgit v1.2.3