How to use bool in c++

In C, the bool type is used to represent true or false values. Usage: 1. Declare bool variables; 2. Assign true or false; 3. Can be used for conditional statements and logical operators.

Use of bool in C

bool is a Boolean data type in C, used to represent A true or false value.

Usage:

To use the bool type, you need:

• Declare a bool variable, for example:

  <code class="cpp">bool isTrue;</code>

• Assign true or false to bool variables, for example:

  <code class="cpp">isTrue = true; // 设为 true
  isTrue = false; // 设为 false</code>

• You can use bool variables for conditional statements and logical operators, for example:

  <code class="cpp">if (isTrue) {
  // 代码块将在 isTrue 为 true 时执行
  }
  
  if (a == b && b == c) {
  // 代码块将在 a 等于 b 且 b 等于 c 时执行
  }</code>

Important note:

• bool variables can only store true or false values.
• By default, uninitialized bool variables are false.
• bool variables can be implicitly converted to integers and floating point numbers, where true is 1 and false is 0.
• Boolean operators such as &&, ||, and ! are used to combine bool values.

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