How to test whether stringstream operator>> has parsed a bad type and skip it

How to test whether stringstream operator>> has parsed a bad type and skip it

I am interested in discussing methods for using stringstream to parse a line with multiple types. I would begin by looking at the following line:"2.832 1.3067 nana 1.678"Now lets assume I have a long line that has multiple strings and doubl

CHECK constraint in MySQL is not working

CHECK constraint in MySQL is not working

First I created a table likeCREATE TABLE Customer ( SD integer CHECK (SD > 0), Last_Name varchar (30), First_Name varchar(30));and then inserted values in that tableINSERT INTO Customer values ('-2','abc','zz');MySQL doesn't show an erro

Are the PUT, DELETE, HEAD, etc methods available in most web browsers?

Are the PUT, DELETE, HEAD, etc methods available in most web browsers?

I've seen a couple questions around here like How to debug RESTful services, which mentions: Unfortunately that same browser won't allow me to test HTTP PUT, DELETE, and to a certain degree even HTTP POST.I've also heard that browsers supp

“static const” vs “#define” vs “enum”

“static const” vs “#define” vs “enum”

Which one is better to use among the below statements in C?static const int var = 5;or #define var 5orenum { var = 5 }; 1:Generally speaking:static constBecause it respects scope and is type-safe.The only caveat I could see: if you want

Accessing the web page's HTTP Headers in JavaScript

Accessing the web page's HTTP Headers in JavaScript

How do I access a page's HTTP response headers via JavaScript?Related to this question, which was modified to ask about accessing two specific HTTP headers. Related: How do I access the HTTP request header fields via JavaScript? 1:It's

Convert matrix to 3-column table ('reverse pivot', 'unpivot', 'flatten'

Convert matrix to 3-column table ('reverse pivot', 'unpivot', 'flatten'

I need to convert the Excel matrix FIRST in the table LATER: FIRST: P1 P2 P3 P4F1 XF2 X XF3 X XF4 X XLATER:F P VALUEF1 P1 XF1 P2F1 P3F1 P4F2 P1 XF2 P2 XF2 P3F2

What's the difference between INNER JOIN, LEFT JOIN, RIGHT JOIN and FULL JOIN? [duplicate]

What's the difference between INNER JOIN, LEFT JOIN, RIGHT JOIN and FULL JOIN? [duplicate]

This question already has an answer here: What is the difference between “INNER JOIN” and “OUTER JOIN”? 33 answers What's the d

How to parse JSON in Java

How to parse JSON in Java

I have the following JSON text. How can I parse it to get pageName, pagePic, post_id, etc.?{ "pageInfo": { "pageName": "abc", "pagePic": "http://example.com/content.jpg" } "posts": [ { "post_id":

AngularJS: Set the model to be = {} again doesn't clear out input type='url'

AngularJS: Set the model to be = {} again doesn't clear out input type='url'

I have a fiddler setup, when i click a reset button it should clear out the input controls, this seems to work but not when the input type='url'Here is the fiddlerIs there an issue or something that I am not understanding.When I set $scope.

SQLite database maximum storage capacity

SQLite database maximum storage capacity

I have a small question about storing data on a SQLite database. How many records in an SQLite database can we maximally store? Is there any limitation? If the data goes beyond this limitation what type of error does it give? Will the whole

A more elegant way of escaping dynamic SQL?

A more elegant way of escaping dynamic SQL?

OK, so I've got this line of code in a search stored procedure:SET @where = 'job_code = ''' + REPLACE(@job_code, '''', '''''') + ''''and there are basically two operations I'd like to streamline -the first being surrounding the concate

“Path too long” when publishing asp.net 5 from Visual Studio 2015

“Path too long” when publishing asp.net 5 from Visual Studio 2015

This seems to be a common problem and I found several Stack Overflow questions, but they all seem to pertain to MSBuild.I'm trying to publish by right-clicking on my asp.net 5 rc1 project in Visual Studio and invoking a file system-based pu

Initializing List with given number of nulls without loop?

Initializing List with given number of nulls without loop?

Can a List be initialized to contain a given number of nulls, where T is a type parameter of the class of which the list is a member? I sure can do it with a loop, but like to know whether it is possible without.List myList = new ArrayList(

How to deserialize class without calling a constructor?

How to deserialize class without calling a constructor?

I'm using Json.NET in my WCF data service.Here's my class (simplified):[DataContract]public class Component{ public Component() { // I'm doing some magic here. }}How can I deserialize that class without invoking a constructo

mvc4 url validation

mvc4 url validation

I'm writing this question here after trying to find an answer for two days.basically here's what's going on.I have a property in the viewmodel as follows[Required(ErrorMessage = "Required Field")][Url(ErrorMessage="Please enter a valid url"

Is it bad practice to use default values in a database? [closed]

Is it bad practice to use default values in a database? [closed]

Shouldn't the code deal with default values instead of the database? 1:Anything you can do in the database is typically more robust. If you handle default values which will be used if no value has been specified only in your app, and som

Bypass HTML “required” attribute when submitting [duplicate]

Bypass HTML “required” attribute when submitting [duplicate]

This question already has an answer here: Required attribute HTML5 8 answers I use required for a 1st check before submitting a form.Problem is, that I

The “X” property on “Y” could not be set to a 'null' value. You must set this property to

The “X” property on “Y” could not be set to a 'null' value. You must set this property to

When I run my application and I click a specific button I get the error:"The "X" property on "Y" could not be set to a 'null' value. You must set this property to a non-null value of type 'Int32'."Cool so I go to my Entity project, go to Y

Spring properties (property-placeholder) autowiring

Spring properties (property-placeholder) autowiring

I have in my applicationContext.xml Is it possible to do the same by autowire ? Something like : @[email protected]("${clientapi.url}")public void setClientApiUrl(String clientApiUrl) { this.clientApiUrl = clientApiUrl;} 1:Y

How do I query for fields containing a given text in MySQL?

How do I query for fields containing a given text in MySQL?

SELECT stuff REGEXP 'itunes' as is_itunes;In this MySQL query, if "stuff" has the word "itunes" in it, it will mark it as itunes.However, I want to say "begin with". How can I check for "begin with" instead of anywhere in the text? 1:SEL

How to mutate struct field in method

How to mutate struct field in method

How I can mutate struct field from method?I want do thatstruct Point { x: int, y: int,}impl Point { fn up(&self) { self.y += 1; }}fn main() { let p = Point { x: 0, y: 0 }; p.up();}But this code throw compile error:/

NULL value in multi-column primary key

NULL value in multi-column primary key

I've got a table with several columns making up the primary key. The nature of the data stored allows some of these fields to have NULL values. I have designed my table as such:CREATE TABLE `test` ( `Field1` SMALLINT(5) UNSIGNED NOT NULL

Add non-nullable columns to an existing table in SQL server?

Add non-nullable columns to an existing table in SQL server?

I already have a table which consists of data. I need to alter the table to add two new columns which are not null. How can I do that without losing any existing data?Here's what I tried (via right-clicking the table and selecting Design):A

How do i change the Android TimePicker minute intervals?

How do i change the Android TimePicker minute intervals?

I am writing an application where the user needs to specify a given point in time, but i can't seem to figure out how to set the minute values that the user can choose from, to only use increments of 5 instead of increments of 1.Simply put,

Card number first 12 digits should be secure entry and remaining 4 digits as normal

Card number first 12 digits should be secure entry and remaining 4 digits as normal

Card number first 12 digits should be secure entry and remaining 4 digits as normal for example i am entering card number - 4111 1111 1111 1111. While entering this text in textfield first 12 digits should be secure entry and last 4 digit