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c++11 - cygwin g++ std::stoi "error: ‘stoi’ is not a member of ‘std

I have: -cygwin 1.7.25 on windows 7/32bit -g++ --version --> g++ (GCC) 4.8.2 -libstdc++.a --> ... not find a solution. What's the issue here? See Question&Answers more detail:os...

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regex - java string split on all non-alphanumeric except apostrophes

So I want to split a string in java on any non-alphanumeric characters. Currently I have been doing it like this ... rest of the junk? Thanks. See Question&Answers more detail:os...

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MacOS, CMake and OpenMP

I am using the newest CMake (3.9.3) from Homebrew along with LLVM 5.0.0 also from Brew, because Clang here ... this the right way of doing it? See Question&Answers more detail:os...

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api - Express Checkout error message: "Security header is not valid"

I'm implementing Express Checkout in PayPal. I have no problem with the first two steps, SetExpressCheckout and ... $environment.paypal.com/nvp? See Question&Answers more detail:os...

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algorithm - Order Statistic Tree in C++

I need an order statistic tree for standard GCC STL map containers. I checked and there is something known as PBDS. ... on GNU G++ its enough? See Question&Answers more detail:os...

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c# - Get member to which attribute was applied from inside attribute constructor?

I have a custom attribute, inside the constructor of my custom attribute I want to set the value of a ... from inside my attribute class? See Question&Answers more detail:os...

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Using VirtualEnv with multiple Python versions on windows

I have python 2.7.6 and 3.4.0 on my machine. The 2.7 version is on my path. I would like to ... point of the python switch on virtualenv. Thanks See Question&Answers more detail:os...

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python - Keras Custom loss function to pass arguments other than y_true and y_pred

I am writing a keras custom loss function where in I want to pass to this function the following: y_true, y_pred ... I achieve this in keras ? See Question&Answers more detail:os...

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visual studio 2010 - Changing startup form in C#

I am using visual studio 2010 express but i wonder how can i change startup form when the program runs as i ... same namespace. Please help me. See Question&Answers more detail:os...

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android - update sql database with ContentValues and the update-method

I would like to update my SQL lite database with the native update-method of the SQLiteDatabase class of android ... and that worked quite fine. See Question&Answers more detail:os...

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Can't get sass + compass + susy installed due to version conflict

I'm working with Sass, Compass and Susy on OSX / Terminal. But I can't get Susy to work together with Sass ... can I do to resolve this error? See Question&Answers more detail:os...

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c# - Timer, event and garbage collection : am I missing something?

Consider the following code : class TestTimerGC : Form { public TestTimerGC() { Button btnGC = new Button(); btnGC. ... my proof didn't work ;) See Question&Answers more detail:os...

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history - Can tags be automatically moved after a git filter-branch and rebase?

edit The question boils down to "Can git rebase be instructed to rebase tags, too?" But an answer to ... git solved the grandfather-paradox! See Question&Answers more detail:os...

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kotlin - Change Chip Widget style programmatically not working - Android

I'm doing a list with Chips. I want this chips can be selected, so, taking a look to https://material.io/ ... "false" android:text="Chip Test"/> See Question&Answers more detail:os...

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css - Why don't margin-top: auto and margin-bottom:auto work the same as their left and right counterparts?

If I set the CSS margin properties of a div like so: div { margin-left: auto; margin-right: auto; } I get ... the same way? What am I missing? See Question&Answers more detail:os...

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vim - Mapping <esc> in vimrc causes bizarre arrow behaviour

I am a happy VIM user, although I admit I'm quite far from being fluent. I found this nice post: Vim clear ... hopefully I'll get there one day. See Question&Answers more detail:os...

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language agnostic - When is a do-while appropriate?

When is a do-while the better choice over other types of loops? What are some common scenarios where its better than ... but not when to use it. See Question&Answers more detail:os...

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tomcat - Is there a way to enforce a deployment order in tomcat6?

I have 3 wars in my webapp folder. Two of them are built on services of the third one. I'm in a testing ... I just don't know which one. See Question&Answers more detail:os...

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c# - Error-Attempt by method 'X.set_DbConnection(System.Data.Common.DbConnection)' to access method 'Y.get_Settings()' failed

I created a console app and use EntityFramework 6.2 (for connection with MS SQL), MySql.Data 8.0. ... .MySqlConnection.get_Settings()' failed." See Question&Answers more detail:os...

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matlab - Change color of 2D plot line depending on 3rd value

I have a data set that looks like this 140400 70.7850 1 140401 70.7923 2 140402 70.7993 3 140403 70 ... this? Without looping if possible. See Question&Answers more detail:os...

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How to Read from a Text File, Character by Character in C++

I was wondering if someone could help me figure out how to read from a text file in C++, character by ... seem to work. Thanks in advance. See Question&Answers more detail:os...

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c - Strange array initialize expression?

What is the meaning of following Code? Code is from the regression test suite of GCC. static char * name[] = { [0x80000000] = "bar" }; See Question&Answers more detail:os...

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Why cannot I cast my COM object to the interface it implements in C#?

I have this interface in the dll (this code is shown in Visual Studio from metadata): #region Assembly XCapture ... Hans Passant's answer below. See Question&Answers more detail:os...

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algorithm - Sorting Array with JavaScript reduce function

Often I study some JavaScript interview questions, suddenly I saw a question about usage of reduce function for ... to improve other algorithms? See Question&Answers more detail:os...

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How to implement multiple inheritance in delphi?

I'm doing a full rewrite of an old library, and I'm not sure how to handle this situation (for the ... to rewrite the same code several time See Question&Answers more detail:os...

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c# - find all ip address in a network

I am trying to do this C#. I need to find all ip address that are active in my network and show them in ... I want to make this process faster. See Question&Answers more detail:os...

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How to resize array in C++?

I need to do the equivalent of the following C# code in C++ Array.Resize(ref A, A.Length - 1); How to achieve this in C++? See Question&Answers more detail:os...

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java IO to copy one File to another

I have two Java.io.File objects file1 and file2. I want to copy the contents from file1 to file2. Is there ... reads file1 and write to file2 See Question&Answers more detail:os...

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

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