integer

问题 I have a problem inserting NULL in Django. I mean i don't know how to do this. I have function, lets call it find_position , then i have field in model like position (IntegerField, null=True, blank=True). This function inspect some html code, and if it match with some regex, it returns integer, but if it doesn't find - have to return NULL or None or something that I can put in database. def find_position(self, to_find, something): ... if re.search(to_find, something): return i + (page * 10) +

问题 Context: This is mainly a followup to that other question. OP wanted to guess whether a variable contained an int or not, and my first thought was that in C (as in C++) an int variable could only contain an int value. And Eric Postpischil reminded me that trap representations were allowed per standard for the int type... Of course, I know that most modern system only use 2-complement representations of integers and no padding bits, meaning that no trap representation can be observed.

问题 Context: This is mainly a followup to that other question. OP wanted to guess whether a variable contained an int or not, and my first thought was that in C (as in C++) an int variable could only contain an int value. And Eric Postpischil reminded me that trap representations were allowed per standard for the int type... Of course, I know that most modern system only use 2-complement representations of integers and no padding bits, meaning that no trap representation can be observed.

问题 I'm currently working on a program and I've run into a problem. I have a bank balance of 1000000 but when I display it on the screen I want it to read as "1,000,000". Now there are ways of getting around this simply by having it set to "1,000,000" and then striping it of commas and converting it to an integer when I need to use the integer value. But I don't want to do that. bankBalance = 1000000 回答1: Use format: >>> bankBalance = 1000000 >>> format(bankBalance, ",") '1,000,000' >>> 回答2:

问题 Description : I implemented the following class LabSetInt64 (see below code). The goal here is to manipulate large sets of big integers (up to values of 10M) as fast as possible. My main requirements are focused on : !Crucial : Getting the size/cardinality of a set as fast as possible !Important : Being able to iterate very fast through a set So, starting from the implementation below, it still remain two points I would like to discuss with you. The "popcount()" lazy implementation int

问题 In my Java class we have just learned about of each of the following primitive data types: byte short int long Since the long data type contains the most bits, wouldn't it make sense to exclusively use the long data type to avoid restrictions? Questions Is there a particular downside to only using the long data type? Does it make sense to use for example, an int data type, instead of a long data type? 回答1: Does it make sense to use for example, an int data type, instead of a long data type?

问题 Not the slightest idea why the hell this is happening.. I've set up a table accordingly: CREATE TABLE raw ( id SERIAL, regtime float NOT NULL, time float NOT NULL, source varchar(15), sourceport INTEGER, destination varchar(15), destport INTEGER, blocked boolean ); ... + index and grants I've successfully used this table for a while now, and all of a sudden the following insert doesn't work any longer.. INSERT INTO raw( time, regtime, blocked, destport, sourceport, source, destination )

问题 I have a mysql database in which i am using auto_increment(integer), can you tell me till what integer it can incremented. How we can increase the limit of auto_increment? 回答1: The limit of an auto_increment column is the size of the column: Use a large enough integer data type for the AUTO_INCREMENT column to hold the maximum sequence value you will need. When the column reaches the upper limit of the data type, the next attempt to generate a sequence number fails. For example, if you use

问题 I have a mysql database in which i am using auto_increment(integer), can you tell me till what integer it can incremented. How we can increase the limit of auto_increment? 回答1: The limit of an auto_increment column is the size of the column: Use a large enough integer data type for the AUTO_INCREMENT column to hold the maximum sequence value you will need. When the column reaches the upper limit of the data type, the next attempt to generate a sequence number fails. For example, if you use

问题 I am writing some type check functions. I want: isInteger isFloat While writing isInteger, I noticed that isInteger(1.0) returns true. I want this to return false. My function is like this: function isInteger(value) { return typeof value === 'number' && value % 1 === 0; } I also noticed that it return true for 1.0 because the argument 'value' is immediately converted to 1 (which I don't want). I did this: function isInteger(value) { console.log(value) // It prints 1 if value is 1.0 return