What does x+= mean in C language?

In C language, the = operator is used to perform compound assignments to variables, which is equivalent to the form of "x = x y". It can be used to increment or decrement variables, resulting in cleaner code and in some cases more efficiency, but only works with numeric variables, not constants or strings.

= operator in C language

In C language, = operator is used to operate on variables Compound assignment, which is equivalent to an expression of the following form:

<code>x = x + y;</code>

where x is a variable and y is a value or variable.

Usage

= operator is used to increment or decrement variables. For example:

• x = 5; Increases the variable x by 5.
• x -= 3; Decrease the variable x by 3.

Advantages

• Concise code: = operator can simplify the code because it combines assignment and operation into one operate.
• Improve efficiency: In some cases, the = operator can improve efficiency because it avoids the assignment and use of temporary variables.

Notes

When using the = operator, you need to pay attention to the following points:

• The = operator can only Used for numeric variables.
• = operator cannot be used with constants or strings.
• The = operator has higher precedence than the assignment operator (=). This means that the = operator in an expression that contains the = operator will be evaluated before the = operator.

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