From b1a5c6d3872db50a59491402a95754fe2127c7a8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=98=D0=BB=D1=8C=D1=8F=20=D0=91=D0=BE=D0=B3=D0=B4=D0=B0?=
 =?UTF-8?q?=D0=BD=D0=BE=D0=B2?= <ibogdanov@bmstu.ru>
Date: Sat, 22 Jan 2022 12:10:01 +0000
Subject: [PATCH] =?UTF-8?q?=D0=97=D0=B0=D0=BC=D0=B5=D1=87=D0=B0=D0=BD?=
 =?UTF-8?q?=D0=B8=D1=8F=20=D0=BF=D0=BE=20mainwindow.cpp?=
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---
 lab2/mainwindow.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lab2/mainwindow.cpp b/lab2/mainwindow.cpp
index 1d753ba..0dfe7dd 100644
--- a/lab2/mainwindow.cpp
+++ b/lab2/mainwindow.cpp
@@ -264,6 +264,9 @@ static bool permission_number=true;
 void EngineeringCalculator::PushButtons(){
     QObject* obj = sender();
 
+    //!!! Указатель нужно привести на основе qobject_cast и проверить правильность приведения.
+    //!!! Где гарантия, что sender был QPushButton ?
+
     if(obj==button_0 ||obj==button_1 ||obj==button_2 || obj==button_3 || obj==button_4 ||
        obj==button_5 ||obj==button_6 ||obj==button_7 || obj==button_8 ||obj==button_9){     //кнопки с цифрами
         QString str;
-- 
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