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c - Is it legal to use memset(…, 0, …) on an array of doubles?

Is it legal to zero the memory of an array of doubles (using memset( ,?0,? )) or struct containing doubles? The ... 4629853/is-it-legal-to-use-memset-0-on-an-array-of-doubles...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Contravariance explained

First of, I have read many explanations on SO and blogs about covariance and contravariance and a big ... from:https://stackoverflow.com/questions/1962629/contravariance-explained...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Access Control Origin Header error using Axios in React Web throwing error in Chrome

Im making an API call using Axios in a React Web app. However Im getting the error in Chrome as, XMLHttpRequest ... -header-error-using-axios-in-react-web-throwing-error-in-ch...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - How to embed PDF file with responsive width

I'm embedding pdf files using something like this: <div class="graph-outline"> <object style="width:100%;" ... .com/questions/16468961/how-to-embed-pdf-file-with-responsive-width...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Adding local plugin to a Gradle project

I have a Gradle plugin that compiles and works as expected. I would like to distribute with the source code ... .com/questions/35302414/adding-local-plugin-to-a-gradle-project...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Does "const" just mean read-only or something more?

What does const really mean? Read-only seems to encapsulate its meaning for me, but, I'm not sure I'm ... com/questions/4486326/does-const-just-mean-read-only-or-something-more...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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compression - Does PostgreSQL support transparent compressing of tables (fragments)?

I'm going to store large amount of data (logs) in fragmented PostgreSQL tables (table per day) ... /1369864/does-postgresql-support-transparent-compressing-of-tables-fragments...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Entity Framework Core: How to get the Connection from the DbContext?

I am trying the new Entity Framework Core with MySQL Connector. I can get a valid DbContext and write into ... entity-framework-core-how-to-get-the-connection-from-the-dbcontext...

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android - the differences between createRfcommSocketToServiceRecord and createRfcommSocket

What are the differences between these two ways below connecting to a bluetooth Device ... 16457693/the-differences-between-createrfcommsockettoservicerecord-and-createrfcommsocket...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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unit testing - Mechanism to check if a C++ member is private

I am writing unit tests for undergraduate students and want to enforce certain members as public or private. I am ... /64095320/mechanism-to-check-if-a-c-member-is-private...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Docker-compose volume mount before run

I have a Dockerfile I'm pointing at from a docker-compose.yml. I'd like the volume mount in the ... ://stackoverflow.com/questions/37089162/docker-compose-volume-mount-before-run...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - How to access TestRunParameters within RunSettings file

Reading through https://msdn.microsoft.com/en-us/library/jj635153.aspx I have created a .RunSettings ... questions/31707415/how-to-access-testrunparameters-within-runsettings-file...

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sql - Using an environment variable in a PSQL script

Is it possible to use a Linux environment variable inside a .sql file? I'm using the copy/select query to ... .com/questions/18725880/using-an-environment-variable-in-a-psql-script...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - An attribute argument must be a constant expression, ...- Create an attribute of type array

Here is my custom attribute and a class I'm using it on: [MethodAttribute(new []{new MethodAttributeMembers(), ... -argument-must-be-a-constant-expression-create-an-attribute-of...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to run groovy script in java?

I have a groovy script and i want to execute it in java. Could someone provide me with further documentation ... .com/questions/17790198/how-to-run-groovy-script-in-java...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Navigating Java call stack in Eclipse

In debuggers like GDB, when you stop at a breakpoint, you can easily move up the call stack and ... /stackoverflow.com/questions/3256369/navigating-java-call-stack-in-eclipse...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - When would you use the Common Service Locator?

I've been looking at the Common Service Locator as a way of abstracting my IoC container but I've been ... com/questions/735712/when-would-you-use-the-common-service-locator...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - MemberData tests show up as one test instead of many

When you use [Theory] together with [InlineData] it will create a test for each item of inline data that is ... /30574322/memberdata-tests-show-up-as-one-test-instead-of-many...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Why is my embedded h2 program writing to a .mv.db file

I followed the quickstart guide on the h2 database website to create a new database a table and insert some data. The ... why-is-my-embedded-h2-program-writing-to-a-mv-db-file...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Is it safe to use Apache commons-io IOUtils.closeQuietly?

Is this code BufferedWriter bw = new BufferedWriter(new FileWriter("test.txt")); try { bw.write("test"); } ... /14436453/is-it-safe-to-use-apache-commons-io-ioutils-closequietly...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Angularjs Chrome autocomplete dilemma

I have a simple login form which works just peachy unless you use Chrome's auto complete feature. ... ://stackoverflow.com/questions/21168367/angularjs-chrome-autocomplete-dilemma...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - Why is it invalid for a union type declared in one function to be used in another function?

When I read ISO/IEC 9899:1999 (see:6.5.2.3), I saw an example like this (emphasis mine) : The following is ... -for-a-union-type-declared-in-one-function-to-be-used-in-anothe...

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c++ - Why is integer assignment on a naturally aligned variable atomic on x86?

I've been reading this article about atomic operations, and it mentions 32bit integer assignment being atomic on ... -assignment-on-a-naturally-aligned-variable-atomic-on-x86...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - See when packages were installed / updated using pip

I know how to see installed Python packages using pip, just use pip freeze. But is there any way to ... com/questions/24736316/see-when-packages-were-installed-updated-using-pip...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - return default if pandas dataframe.loc location doesn't exist

I find myself often having to check whether a column or row exists in a dataframe before trying to ... 23403352/return-default-if-pandas-dataframe-loc-location-doesnt-exist...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to set timeout in RestClient gem in Ruby?

I am using RestClient gem by making get call to the server through it. The question is how do I set the ... com/questions/10483418/how-to-set-timeout-in-restclient-gem-in-ruby...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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algorithm - scala median implementation

What's a fast implementation of median in scala? This is what I found on rosetta code: def median( ... from:https://stackoverflow.com/questions/4662292/scala-median-implementation...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Django - specify which model manager Django admin should use

I've created a custom Manager for a Django model which returns a QuerySet holding a subset of objects.all() ... /1545067/django-specify-which-model-manager-django-admin-should-use...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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