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compiler errors - c++ multiple definitions of a variable

I have 4 files (2 headers, and 2 code files). FileA.cpp, FileA.h, FileB.cpp, FileB.h FileA.cpp: #include " ... know why, it seems as it should work just fine. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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What is the maximum length of an array in .NET on 64-bit Windows

I heard from someone that the maximum array size in .NET is 4 GB? Just wondering if that is true. You wouldn't ... just maybe you might want to do this. :-) Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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866 views

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types - How to convert a gi-normous integer (in string format) to hex format? (C#)

Given a potentially huge integer value (in C# string format), I want to be able to generate its hex ... convert numbers between hexadecimal and decimal in C#? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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870 views

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jsf 2 - How to call JSF backing bean method only when onclick/oncomplete/on... event occurs and not on page load

I have two image buttons: <div class="sidebarOptions"> <input type="image" src="images/homeButton.jpg" ... method when the image button is actually clicked? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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windows installer - Wix to Install multiple Applications

I probably have a strange request. I have develop a msi to install two softwares. After the EULA a screen with two ... two. I would be obliged for any leads. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - What is the difference between these (bCondition == NULL) and (NULL==bCondition)?

While exploring msdn sites ,most of the condition checking places they are using (NULL == bCondition). what is ... some sample to explain these please. Thanks. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Parsing a string to date format in java defaults date to 1 and month to January

I am trying to accept a user input of date in the format like : "2000 hrs, Thursday, July 20, 2015". I will ... hrs, Thursday, January 01, 2015. Any clue why? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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version control - Git and Mercurial - Compare and Contrast

For a while now I've been using subversion for my personal projects. More and more I keep hearing ... they differ in terms of implementation and philosophy. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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build process - How do I get the Git commit count?

I'd like to get the number of commits of my Git repository, a bit like SVN revision numbers. The goal is to ... . Just read a file or a directory structure... Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How do you stop tracking a remote branch in Git?

How do you stop tracking a remote branch in Git? I am asking to stop tracking because in my concrete case, I ... to run git push origin :the_branch later on? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ssh - Vagrant stuck connection timeout retrying

My vagrant was working perfectly fine last night. I've just turned the PC on, hit vagrant up, and this is what ... I can't find a reason why this is occurring. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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macos - Is there a command like "watch" or "inotifywait" on the Mac?

I want to watch a folder on my Mac (Snow Leopard) and then execute a script (giving it the filename of what ... are moved/created into a dir. Any such command? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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922 views

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indexing - How do MySQL indexes work?

I am really interested in how MySQL indexes work, more specifically, how can they return the data requested without ... detail, I would be very, very thankful. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - How to create a jQuery plugin with methods?

I'm trying to write a jQuery plugin that will provide additional functions/methods to the object that calls it ... of Hari's following comments and upvotes. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How would Git handle a SHA-1 collision on a blob?

This probably never happened in the real-world yet, and may never happen, but let's consider this: say ... actual problem, but I found the issue interesting. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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618 views

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cluster analysis - How do I determine k when using k-means clustering?

I've been studying about k-means clustering, and one thing that's not clear is how you choose the value of k. Is ... of trial and error, or is there more to it? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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401 views

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repository - How to generate a Dockerfile from an image?

Is it possible to generate a Dockerfile from an image? I want to know for two reasons: I can download images ... a structured format to review what was done. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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351 views

1 answer

ruby on rails 3.1 - ExecJS and could not find a JavaScript runtime

I'm trying to use the Mongoid / Devise Rails 3.1 template (Mongoid and Devise), and I keep getting an error ... What do I need to do to get this working? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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268 views

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c# - UWP Enable local network loopback

I wrote a UWP-App and after generating and installing the .appxbundle, every time I start the App I get ... reach the localhost (enable local network loopback)? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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213 views

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android - Passing ArrayList through Intent

I am trying to pass an arrayList to another activity using intents. Here is the code in the first ... ); stock_list = i.getStringArrayListExtra("stock_list"); Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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195 views

1 answer

Android java.lang.VerifyError?

In my Android app, I always get VerifyErrors! And I cannot figure out why. Whenever I include a external JAR, I ... class files? which I do not know of. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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145 views

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abaddressbook - Android fetch all contact list (name, email, phone) takes more then a minute for about 700 contacts

Is there any way to shorten this time? I'm running with the cursor and takes the name, phone numbers and emails if I ... } } pCur.close(); } } cur.close(); Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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768 views

1 answer

gnu - Increase stack size in Linux with setrlimit

reading information about how to increase stack size for a c++ application compiled with gnu, at compilation time, ... + program, could anybody help me? Thanlks Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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328 views

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c# - What's the point of the var keyword?

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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77 views

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javascript - Anonymous class instance ---- is it a bad idea?

In ES6 we can do anonymous class: var entity = class { } But we can also instantiate it: var entity = new ... will it bring and what caveats will it also bring? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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222 views

1 answer

CodeIgniter Disallowed Key Characters

CodeIgniter is giving me a Disallowed Key Characters error. I've narrowed it down to the name attribute of a form field: ... I'm not sure what to do about it. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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751 views

1 answer

xpath - Python Selenium WebDriver. Writing my own expected condition

I'm trying to write my own expected condition. What I need... I have an iframe. and I also have an image in it. ... line below it works fine... I don't get it. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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249 views

1 answer

Variables in bash seq replacement ({1..10})

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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