In C, 0 equals false. In Boolean types, 0 represents false and non-zero values represent true. For example, if the integer variable x is 5, the condition if (x) is true, and if the integer variable y is 0, the condition if (y) is false.
In C, is 0 false?
Answer: is
Detailed explanation:
In C, values of integer type (such as int , short and long) are considered true except 0. Therefore, 0 is the only false value in C.
This is because in C's Boolean type (bool), there are only two values:
This means that in the conditional judgment, any non-zero value will be evaluated as true, and 0 will be evaluated as false. For example:
<code class="cpp">int x = 5; if (x) { // x 为非零值,因此此代码块将执行 } int y = 0; if (y) { // y 为零值,因此此代码块不会执行 }</code>
It is important to note that boolean values in C can be implicitly converted to integers, where false is converted to 0 and true is converted to 1.
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