What does ++= mean in c language
The = operator in C language adds 1 to the value on the right and then assigns it to the variable on the left: 1. Syntax: variable = expression; 2. Meaning: variable increases the value of expression.
The meaning of = in C language
In C language, = is a The compound assignment operator adds 1 to the value on the right and assigns it to the variable on the left.
Syntax:
<code>variable ++= expression;</code>
Meaning:
The value of the variable is increased by the value of expression.
Equivalent code:
The following code is equivalent to variable = expression;:
<code>variable = variable + expression;</code>
Example:
int x = 5; x ++= 2; // 将 x 增加 2 // 现在 x 等于 7
Note:
- variable must be a modifiable L-value (lvalue).
- expression must be an expression of type integer.
- The = operator has lower precedence than the assignment operator (=), so you need to consider the use of parentheses when using it.
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