OStack Q&A-Knowledge Sharing Community

0 votes

259 views

1 answer

Determine which MySQL configuration file is being used

Is there a command to determine which configuration file MySQL 5.0 is currently using? Question&Answers:os...

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

0 votes

306 views

1 answer

c# - Memory allocation: Stack vs Heap?

I am getting confused with memory allocation basics between Stack vs Heap. As per the standard definition (things ... memory locations that is, Stack and Heap? Question&Answers:os...

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

0 votes

216 views

1 answer

c# - Websocket server: onopen function on the web socket is never called

I'm trying to implement a C# web socket server, but its giving me a few troubles. I'm running a webserver(ASP.NET ... the code (hope thats not to much to ask) Question&Answers:os...

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

0 votes

187 views

1 answer

iphone - Gesture recognizer and button actions

I have a view hierarchy that looks something like this: UIView (A) UIView > UIImageView UIView > UIView (B) ... __FUNCTION__); break; } default: break; } } Question&Answers:os...

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

0 votes

296 views

1 answer

What is the function of the push / pop instructions used on registers in x86 assembly?

When reading about assembler I often come across people writing that they push a certain register of the ... processor instruction or is it more complex? Question&Answers:os...

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

0 votes

1.5k views

1 answer

maven 2 - SLF4J: Class path contains multiple SLF4J bindings

I'm getting the following error. It seems there are multiple logging frameworks bound to slf4j. Not ... .org/codes.html#multiple_bindings for an explanation. Question&Answers:os...

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

0 votes

175 views

1 answer

python - How can I dynamically create derived classes from a base class

For example I have a base class as follows: class BaseClass(object): def __init__(self, classtype): self._type ... way, i.e. dynamically created class objects. Question&Answers:os...

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

0 votes

227 views

1 answer

c++ - How to detect C++11 support of a compiler with CMake

Is there a way to let CMake detect automatically if a compiler supports C++11 or not? As it would ... ("-std=c++0x") endif(CMAKE_COMPILER_IS_GNUCXX) Question&Answers:os...

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

0 votes

254 views

1 answer

html - ng-app vs. data-ng-app, what is the difference?

I'm currently looking at this start tutorial video for angular.js At some moment (after 12'40"), the speaker ... ways, ng- prefix against data-ng- prefix ? Question&Answers:os...

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

0 votes

110 views

1 answer

html - How to stop text from taking up more than 1 line?

Is there a word-wrap or any other attribute that stops text from wrapping? I have a height, and overflow:hidden ... Needs to work in all browsers, before CSS3. Question&Answers:os...

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

0 votes

304 views

1 answer

c++ - What does the thread_local mean in C++11?

I am confused with the description of thread_local in C++11. My understanding is, each thread has unique copy of ... for which they are defined? Is it correct? Question&Answers:os...

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

0 votes

124 views

1 answer

What's the difference between a catalog and a schema in a relational database?

I used to think schema were the "upper wrapper" object before the database itself. I mean DB.schema.< ... purpose, precisely should the catalog be used? Question&Answers:os...

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

0 votes

231 views

1 answer

iphone - iOS crash log catch, debug info.. Catch and send via email to the Dev team

Recently we came across a situation where we wanted to see the debug info from the app which a user has on his ... email it the next time app launches.. Thanks, Question&Answers:os...

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

0 votes

116 views

1 answer

javascript - Scaling Socket.IO to multiple Node.js processes using cluster

Tearing my hair out with this one... has anyone managed to scale Socket.IO to multiple "worker" processes spawned ... I ensure the message is only sent once? Question&Answers:os...

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

0 votes

411 views

1 answer

android - Add ripple effect to my button with button background color?

I created a button and I want to add ripple effect to that button! I created a button bg XML file: (bg_btn. ... of Stack Overflow, but still it is not working! Question&Answers:os...

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

0 votes

511 views

1 answer

What does ${} (dollar sign and curly braces) mean in a string in Javascript?

I haven't seen anything here or on MDN. I'm sure I'm just missing something. There's got to be some documentation ... .log(`Insert a string here: ${string}`); Question&Answers:os...

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

0 votes

302 views

1 answer

python - How to add title to subplots in Matplotlib

I have one figure which contains many subplots. fig = plt.figure(num=None, figsize=(26, 12), dpi=80 ... Corrected typo about set_title(). Thanks Rutger Kassies Question&Answers:os...

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

0 votes

514 views

1 answer

java - Class JavaLaunchHelper is implemented in both ... libinstrument.dylib. One of the two will be used. Which one is undefined

I upgraded to the latest Java 7u40 on MacOS X and started getting the following message on the console when launching ... message is printed and how to fix it? Question&Answers:os...

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

0 votes

210 views

1 answer

c# - ASP.NET MVC ambiguous action methods

I have two action methods that are conflicting. Basically, I want to be able to get to the same view using ... public ActionResult Assign(string itemId) { ... } Question&Answers:os...

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

0 votes

118 views

1 answer

sql server - Does a foreign key automatically create an index?

I've been told that if I foreign key two tables, that SQL Server will create something akin to an index ... key fields or are they just unnecessary overhead? Question&Answers:os...

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

0 votes

266 views

1 answer

asp.net mvc - Add CSS or JavaScript files to layout head from views or partial views

Layout pages head: <head> <link href="@Url.Content("~/Content/themes/base/Site.css")" rel="stylesheet" ... will change dynamicaly (it depends on Anotherpages). Question&Answers:os...

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

0 votes

1.1k views

1 answer

graphics - Measuring text height to be drawn on Canvas ( Android )

Any straight forward way to measure the height of text? The way I am doing it now is by using Paint's measureText() ... hate it! There has to be a better way. Question&Answers:os...

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

0 votes

252 views

1 answer

Git: How to remove file from historical commit?

I have commit with id 56f06019 (for example). In that commit i have accidentally commited large file (50Mb). In ... history to reduce the size of my repo ? Question&Answers:os...

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

0 votes

129 views

1 answer

c# - Visual Studio "Could not copy" .... during build

I keep getting this error during the build of my VS2012 C# project Error 41 Could not copy "objDebugWeinGartner. ... happening at all? My debugger settings are Question&Answers:os...

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

0 votes

331 views

1 answer

cocoa touch - How would I tint an image programmatically on iOS?

I would like to tint an image with a color reference. The results should look like the Multiply blending mode in ... alpha:1.0]; // draw image } Question&Answers:os...

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

0 votes

268 views

1 answer

python - Dropping infinite values from dataframes in pandas?

What is the quickest/simplest way to drop nan and inf/-inf values from a pandas.DataFrame without resetting ... inf in its definition of missing values? Question&Answers:os...

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

0 votes

98 views

1 answer

android studio - How to check if gradle dependency has new version

In Android Studio when I use + in version number (like com.android.support:recyclerview-v7:21.+) I get " ... this is not available for other custom libraries. Question&Answers:os...

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

0 votes

166 views

1 answer

c++ - What does "default" mean after a class' function declaration?

I've seen default used next to function declarations in a class. What does it do? class C { C(const C&) = default; C( ... C&&) & = default; virtual ~C() { } }; Question&Answers:os...

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

Categories

Recent questions

Just Browsing Browsing

Most popular tags