In C language / is used for integer division, and % is used for remainder. The / operator divides two integers and the result is an integer whose sign is determined by the signs of the dividend and divisor. The % operator performs the remainder operation on two integers, and the result is an integer with the same sign as the dividend.
The difference between / and % in C language
Get straight to the point
C language / and % are two operators with different functions: / is used for integer division, and % is used for remainder.
Detailed explanation
1. Integer division (/)
- / operator operates on two integers Division operation, the result is an integer.
-
The sign of the result is determined by the sign of the dividend and divisor, following the following rules:
- Division with different signs is a negative number
- Division with the same sign is Positive number
2. Remainder (%)
- % operator performs remainder operation on two integers , the result is an integer.
- The result of the remainder is the remainder left in the division operation, and its sign is the same as the dividend.
Usage examples
int a = 10; int b = 3; // / 运算符执行整数除法 int quotient = a / b; // 结果为 3 // % 运算符执行求余运算 int remainder = a % b; // 结果为 1
Other differences
In addition to the above differences, / and % also have the following differences :
- Precision: The result of the / operator is always an integer, while the result of the % operator can be either a positive or a negative integer.
- Applicable types: / operator can only be used for integers, while % operator can be used for integers, floating point numbers and pointer types.
- Priority: / operator has higher priority than % operator.
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