在Objective-C中是否可以查看int值是否在特定的枚举中？例如,在这个枚举中：
enum {
ValidationLoginFailed = 2000,ValidationSessionTokenExpired = 2001,ValidationSessionTokenInvalid = 2002,ValidationEmailNotFound = 2003
};
typedef int ValidationStatusCodes;
是否可以查看ValidationStatusCodes枚举中是否有任意整数值？
[ValidationStatusCodes contains:intResponseCode]
或至少
[self intIsInRangeofEnum:ValidationStatusCodes forValue:intResponseCode]
