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c++ - Why "not all control paths return a value" is warning and not an error?

I was trying to answer this question. As suggested by the accepted answer, the problem with that code is ... dreaded undefined behavior again? See Question&Answers more detail:os...

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

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javascript - ES6 module syntax: is it possible to `export * as Name from ...`?

See question title. I found a great reference for the forms of export available, but I have not seen what I'm ... for the sake of the question.) See Question&Answers more detail:os...

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

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Is it possible to use a primitive type (int) in as a generic type in Java?

Specifically, with a SortedMap<Vector<String>, int> I get "dimensions expected after this (int) token." Help! See Question&Answers more detail:os...

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

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c# - Why does System.Threading.Timer stop on its own?

I'm doing a small test project before I use System.Threading.Timer in a Windows Service project. It's working ... bit. Why would this be? See Question&Answers more detail:os...

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

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Python: optimal search for substring in list of strings

I have a particular problem where I want to search for many substrings in a list of many strings. The ... just that slow relatively speaking? See Question&Answers more detail:os...

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

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.net - Configuring log4net with xml file

I tried to configure log4net for logging everything to the console output. I have a config file named Log4Net. ... , can someone explain this? See Question&Answers more detail:os...

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

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java - Is the garbage collector guaranteed to run before Out of Memory Error?

In case the heap is full, the JVM throws an OutOfMemoryError. But is it assured that a (full) garbage ... - HotSpot is in discussion. See Question&Answers more detail:os...

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

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namespaces - Swift's standard library and name collision

I know that Swift doesn't use namespaces, but that names are defined within each module. First of all, I ... thanks @Martin R for your comment) See Question&Answers more detail:os...

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

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c# - Get question mark instead property name and value in Debug Mode in Visual Studio

My issue is: during Debug Mode in Visual Studio I can not see property name and it value. Any suggestions? UPD ... mentioned in the top of UPD. See Question&Answers more detail:os...

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

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compiler construction - How can I set the PATH variable for javac so I can manually compile my .java works?

Here's the address on my drive: C:Program FilesJavajdk1.6.0_18in How would I go about setting the path ... 'm using Windows 7 Professional. See Question&Answers more detail:os...

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

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c++ - Where should non-member operator overloads be placed?

I want to overload operator<< for my class. Should I add this overloaded definition to the std namespace? ( ... in advance for your responses. See Question&Answers more detail:os...

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

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java - How to insert a document with date in mongo?

We are trying to insert a document with the current date as it's field. We are writing in java using ... the answer was not helpful Link See Question&Answers more detail:os...

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

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How random is PHP's shuffle function?

Does anyone know what's the randomness of PHP's shuffle() function? Does it depend on the operating system? ... use mt_rand() as generator? See Question&Answers more detail:os...

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

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Javascript Regex to match only a single occurrence no more or less

I have a string like below: single-hyphen I need to match the hyphen. However, I only want to match a single ... to do this? Thanks in advance. See Question&Answers more detail:os...

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

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css selectors - Why are my CSS properties being overridden/ignored?

I'm having some issues with the CSS "hierarchy" (not sure if it's proper to call it a hierarchy). I' ... up more about how this hierarchy works? See Question&Answers more detail:os...

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

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jQuery behaving strange after page refresh (F5) in Chrome

I have a script, that works fine in FireFox, IE, but not in Chrome after F5 refresh only! It does work in ... problem isn't there, any ideas? See Question&Answers more detail:os...

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

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Undefined reference C++

I'm trying to compile my first legit program that I'm converting from Java (I ran a test hello world type ... Code::Blocks on Ubuntu 10.10. See Question&Answers more detail:os...

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

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551 views

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c# - Elmah: How to get JSON HTTP request body from error report

I'm using Elmah to log exceptions. Elmah is great at logging request bodies if the request is a Form-based ... /json {"city":"Vancouver"} See Question&Answers more detail:os...

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

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593 views

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css - Styling options in bold in Internet Explorer

I am getting a styling problem with options. I need some options to appear in bold style, but Internet Explorer doesn ... { font-weight: bold; } See Question&Answers more detail:os...

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

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872 views

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`if __name__ == '__main__'` equivalent in javascript es6 modules

Is it possible to check if JavaScript file is being run directly or if it was required as part of ... interested specifically for es6 imports See Question&Answers more detail:os...

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

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825 views

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assembly - Which versions of Windows support/require which CPU multimedia extensions? (How to check if SSE or AVX are fully usable?)

So far I have managed to find out that: SSE and SSE2 are mandatory for Windows 8 and later (and of course for ... from one of the SSE/AVX sets. See Question&Answers more detail:os...

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

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719 views

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performance - Java Collections and Garbage Collector

A little question regarding performance in a Java web app. Let's assume I have a List<Rubrique> listRubriques ... might create a memory leak? See Question&Answers more detail:os...

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

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548 views

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Shrink-wrap and center a container for inline-block elements

I have a bunch of inline-block elements over several lines which I'd like to center horizontally. The inline-block ... /jsfiddle.net/fe25H/5/). See Question&Answers more detail:os...

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

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javascript - jQuery animate and property values in percentage

I trying to animate a div and I try to use some value retreived somewhere else, I know the value to be correct ... {width: percentage}, 3000); } See Question&Answers more detail:os...

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

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How can I make a table in MySQL called "order"?

When I make a MySQL table order, it is created successfully but, when I execute any query against it, it ... our query against the order table? See Question&Answers more detail:os...

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

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713 views

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Visual Studio: Where does it store "Set as startup project"?

Let's say a single solution (.sln) has 2 (.vcproj) named Proj1 and Proj2. By default, Visual Studio assigned ... Note: I use Visual Studio 2008 See Question&Answers more detail:os...

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

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517 views

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Array initialisation in java

I noticed one could write code like this, which is perfectly normal, by the way: int arrays[] = {1, 2, 3}; ... int, so the array must be int[] See Question&Answers more detail:os...

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

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620 views

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sql order by - Mysql delete statement with limit

I'm trying to delete rows from a table but I get an error. DELETE FROM `chat_messages` ORDER BY `timestamp` DESC ... 1 No idea what's wrong. See Question&Answers more detail:os...

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

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