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---
title: "true (C++) | Microsoft Docs"
ms.custom: ""
ms.date: "11/04/2016"
ms.reviewer: ""
ms.suite: ""
ms.technology: ["cpp-language"]
ms.tgt_pltfrm: ""
ms.topic: "language-reference"
f1_keywords: ["true_cpp", "true"]
dev_langs: ["C++"]
helpviewer_keywords: ["[""true keyword [C++]""]"]
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author: "mikeblome"
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---
bool-identifier = true ;
bool-expression logical-operator true ;
This keyword is one of the two values for a variable of type bool or a conditional expression (a conditional expression is now a true boolean expression). If i is of type bool, then the statement i = true; assigns true to i.
// bool_true.cpp
#include <stdio.h>
int main()
{
bool bb = true;
printf_s("%d\n", bb);
bb = false;
printf_s("%d\n", bb);
}
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