From 46eac22172dff7a59def6f5f79ab7bf4e2eefd96 Mon Sep 17 00:00:00 2001
From: Juan Carlos <juancarlospaco@gmail.com>
Date: Thu, 3 Nov 2022 05:44:11 -0300
Subject: [PATCH] Improve dollar int (#20737)

Improve dollar
---
 compiler/int128.nim | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/compiler/int128.nim b/compiler/int128.nim
index 4791954a29..e357706b93 100644
--- a/compiler/int128.nim
+++ b/compiler/int128.nim
@@ -429,7 +429,7 @@ proc `mod`*(a, b: Int128): Int128 =
 proc addInt128*(result: var string; value: Int128) =
   let initialSize = result.len
   if value == Zero:
-    result.add "0"
+    result.add '0'
   elif value == low(Int128):
     result.add "-170141183460469231731687303715884105728"
   else:
@@ -450,6 +450,8 @@ proc addInt128*(result: var string; value: Int128) =
       j -= 1
 
 proc `$`*(a: Int128): string =
+  # "-170141183460469231731687303715884105728".len == 41
+  result = newStringOfCap(41)
   result.addInt128(a)
 
 proc parseDecimalInt128*(arg: string, pos: int = 0): Int128 =