From 37efb237c7cdcaeadc432a167117a761dafad26f Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Tue, 12 Feb 2019 04:35:30 +0300
Subject: [PATCH] Fix warning.

GitOrigin-RevId: 9f43d43faad9e19d56f97b506aa6f4c4efb3659e
---
 td/telegram/cli.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/td/telegram/cli.cpp b/td/telegram/cli.cpp
index f6016431d..501b3989c 100644
--- a/td/telegram/cli.cpp
+++ b/td/telegram/cli.cpp
@@ -1217,7 +1217,7 @@ class CliClient final : public Actor {
 
   void on_cmd(string cmd) {
     // TODO: need to remove https://en.wikipedia.org/wiki/ANSI_escape_code from cmd
-    cmd.erase(std::remove_if(cmd.begin(), cmd.end(), [](char c) { return 0 <= c && c < 32; }), cmd.end());
+    cmd.erase(std::remove_if(cmd.begin(), cmd.end(), [](unsigned char c) { return c < 32; }), cmd.end());
     LOG(INFO) << "CMD:[" << cmd << "]";
 
     string op;