From 91942f29d35e2a31df79c88eaa92733438fc6278 Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Mon, 14 Sep 2020 14:45:22 +0300
Subject: [PATCH] Add OptionParser::parse_integer helper function.

GitOrigin-RevId: d202848b64c27bb260e189783722508684b633c5
---
 tdutils/td/utils/OptionParser.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tdutils/td/utils/OptionParser.h b/tdutils/td/utils/OptionParser.h
index 2fbd86698..af611ec3f 100644
--- a/tdutils/td/utils/OptionParser.h
+++ b/tdutils/td/utils/OptionParser.h
@@ -7,6 +7,7 @@
 #pragma once
 
 #include "td/utils/common.h"
+#include "td/utils/misc.h"
 #include "td/utils/Slice.h"
 #include "td/utils/Status.h"
 #include "td/utils/StringBuilder.h"
@@ -30,6 +31,14 @@ class OptionParser {
                   std::function<Status(Slice)> callback);
 
  public:
+  template <class T>
+  static std::function<Status(Slice)> parse_integer(T &value) {
+    return [&value](Slice value_str) {
+      TRY_RESULT_ASSIGN(value, to_integer_safe<T>(value_str));
+      return Status::OK();
+    };
+  }
+
   void set_description(string description);
 
   void add_checked_option(char short_key, Slice long_key, Slice description, std::function<Status(Slice)> callback);