The meaning of | in c language

The | operator in C language is a bitwise OR operator, which performs a logical OR operation on the corresponding bits of two binary numbers. It is represented as a vertical line (|) and the syntax is result = expression1 | expression2. Rationale: If both bits are 1, the resulting bit is 1; otherwise it is 0. Application scenarios include setting multi-bit flags, combining specific bits of a binary number, checking whether a flag is set, and manipulating data in bit fields.

The meaning of | operator in C language

## in C language The #| operator is a bitwise OR operator, used to logically OR the corresponding bits of two binary numbers.

Basic Principle

The bitwise OR operator performs the following operations on each bit of two binary numbers:

If two If all bits are 1, then the result bit is 1.
• If one or both bits are 0, the resulting bit is 0. The

symbol represents

| The operator is represented as a vertical line and the symbol is

|.

Syntax

##|

The syntax of the operator is as follows: <pre class="brush:php;toolbar:false">&lt;code class=&quot;c&quot;&gt;result = expression1 | expression2;&lt;/code&gt;</pre>where:

result
• is the result of bitwise OR operation.
expression1
• and expression2 are binary numbers participating in the operation.

Example

<code class="c">// 0101 (5) | 1011 (11)
int result = 5 | 11; </code>

Calculation result:

<code>0101
1011
-----
1111</code>

Therefore, the value of

result

is 15.

Application scenarios

|

Operators are often used for:

Set multi-bit flags

• Combine specific bits of two binary numbers
• Check if flag is set
• Manipulate data in bit fields

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