This int is an index into a table of system error messages, called sys_errlist (an array of strings), whose highest element has index sys_nerr - 1.

该整数是对系统错误消息表的索引，这个表名为sys_errlist(字符串数组)，其最高元素的索引为sys_nerr - 1。

youdao

Changing the return type to float, for example, isn't flagged as an error because an int in the test method's return statement is automatically promoted to float.

如果将返回值改为float，这不会被标记成错误，因为test方法返回语句中的int会自动转换成float。

youdao

In order to damp the disturbances aroused by control switch and eliminate the system stead-state error, ratio switch and intelligent integrated switch are introduced int.

为防止由控制量切换引起的系统扰动，引入比值切换方式；为消除系统余差，引入智能积分开关。

youdao