C- | c语言学生管理系统 c语言学生管理系统 开发环境 vs2012 ( vs2012 dev测试 vc | Code Editor library

 by   RAOE C Version: Current License: No License

kandi X-RAY | C- Summary

kandi X-RAY | C- Summary

C- is a C library typically used in Editor, Code Editor, Visual Studio Code applications. C- has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

#c语言学生管理系统 C语言学生管理系统 开发环境 VS2012 (vs2012 dev测试 vc++6.0都可以运行).
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              C- has a low active ecosystem.
              It has 25 star(s) with 8 fork(s). There are 2 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              C- has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of C- is current.

            kandi-Quality Quality

              C- has no bugs reported.

            kandi-Security Security

              C- has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              C- does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              OutlinedDot
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              C- releases are not available. You will need to build from source code and install.

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            C- Key Features

            No Key Features are available at this moment for C-.

            C- Examples and Code Snippets

            No Code Snippets are available at this moment for C-.

            Community Discussions

            QUESTION

            Does Comparison Function specified with lambda function in std::sort return bool type?
            Asked 2021-Jun-16 at 03:09

            I was reading this code (source):

            ...

            ANSWER

            Answered 2021-Jun-16 at 02:16

            The n2 - n1 in the case of a negative number as a result when converted to bool will yield true. So n1 turns out to be less than n2. That's why it is a bad practice to use ints in such Boolean context.

            Yes, as stated in the documentation:

            ...comparison function object which returns ​true if the first argument is less than the second

            But the implementation of the comparison here leads to failure. Try this and see for yourself:

            Source https://stackoverflow.com/questions/67995381

            QUESTION

            How to Config Javascript ' script in Django?
            Asked 2021-Jun-16 at 02:47

            I built an app using Django 3.2.3., but when I try to settup my javascript code for the HTML, it doesn't work. I have read this post Django Static Files Development and follow the instructions, but it doesn't resolve my issue.

            Also I couldn't find TEMPLATE_CONTEXT_PROCESSORS, according to this post no TEMPLATE_CONTEXT_PROCESSORS in django, from 1.7 Django and later, TEMPLATE_CONTEXT_PROCESSORS is the same as TEMPLATE to config django.core.context_processors.static but when I paste that code, turns in error saying django.core.context_processors.static doesn't exist.

            I don't have idea why my javascript' script isn't working.

            The configurations are the followings

            Settings.py

            ...

            ANSWER

            Answered 2021-Jun-15 at 18:56

            Run ‘python manage.py collectstatic’ and try again.

            The way you handle static wrong, remove the static dirs in your INSTALLED_APPS out of STATIC_DIRS and set a STATIC_ROOT then collectstatic again.

            Add the following as django documentation to your urls.py

            Source https://stackoverflow.com/questions/67990678

            QUESTION

            Invalid Character when Selecting classname - Python Webscraping
            Asked 2021-Jun-16 at 01:11

            I am beginning to learn the basics of webscraping with Python, but I am having a little trouble with my code. I am trying to scrape the weather from the front page of 'yahoo.com':

            ...

            ANSWER

            Answered 2021-Jun-16 at 01:11

            The problem is that your CSS selectors include parentheses () and dollar signs $. These symbols already have a special meaning. See:

            You can escape these characters using a backslash \.

            Source https://stackoverflow.com/questions/67994434

            QUESTION

            Parallelize histogram creation in c++ with futures: how to use a template function with future?
            Asked 2021-Jun-16 at 00:46

            Giving a bit of context. I'm using c++17. I'm using pointer T* data because this will interop with cuda code. I'm trying write a parallel version (on CPU) of a histogram creator. The sequential version:

            ...

            ANSWER

            Answered 2021-Jun-16 at 00:46

            The issue you are having has nothing to do with templates. You cannot invoke std::async() on a member function without binding it to an instance. Wrapping the call in a lambda does the trick.

            Here's an example:

            Source https://stackoverflow.com/questions/67994778

            QUESTION

            How to print ggplot for multiple tables in this case?
            Asked 2021-Jun-15 at 22:10

            I have this code which prints multiple tables

            ...

            ANSWER

            Answered 2021-Jun-15 at 20:59

            So, this is a good opportunity to use purrr::map. You are half way there by applying code to one dataframe.

            You can take the code that you have written above and put it into a function.

            Source https://stackoverflow.com/questions/67992308

            QUESTION

            Need help understanding typecasting const void pointer in C
            Asked 2021-Jun-15 at 21:49

            I have trouble understanding the first line of code inside this implementation of the bsearch function in C. I understand the search algorithm itself and I have played around with this function to get a good grasp of it but I still do not get what

            ...

            ANSWER

            Answered 2021-Jun-15 at 21:44

            Within the function you need to find each element in the passed array. However the type of the array is unknown. You only know the size of each element of the array and the starting address of the array that is passed through the parameter base0. of the type const void *..

            To access an element of the array you need to use the pointer arithmetic. But the type void is incomplete type. Its size is unknown/ So you may not use the pointer of the type (const) void *` in expressions with the pointer arithmetic.

            Thus this declaration

            Source https://stackoverflow.com/questions/67993505

            QUESTION

            How can I combine rows of data when their character values are equal? (R)
            Asked 2021-Jun-15 at 18:02

            I have a dataset that was recorded by observation(each observation has its own row of data). I am looking to combine/condense these rows by the plant they were found on - currently a character variable. All other columns are numerical vales.

            EX:

            This is the raw data |Sci_Name|Honeybee_count|Other_bee_Obsevrved|Stem_count| |---|---|---|---| |Zizia aurea|1|5|10| |Asclepias viridiflora|15|1|3| |Viola unknown|0|0|4| |Zizia aurea|0|2|6| |Zizia aurea|3|6|3| |Asclepias viridiflora|8|2|17|

            and I want:

            Sci_Name Honeybee_count Other_bee_Obsevrved Stem_count Zizia aurea 4 13 19 Asclepias viridiflora 23 3 20 Viola unknown 0 0 4

            I am currently pulling this data from a CSV already in table form. I have been attempting to create a new table/data frame with one entry of each plant species, and blanks/0s for each other variable, which I can then use to c-binding the two together. This, however, has been clunky at best and I am having trouble figuring out how to have each row check itself. I am open to any approach, let me know what you think!

            Thanks :D

            ...

            ANSWER

            Answered 2021-Jun-15 at 18:02

            We can use the formula method in aggregate from base R. On the rhs of the ~, specify the grouping variable and on the lhs, use . for denoting the rest of the variables. Specify the FUN as sum and it will do the column wise sum by group

            Source https://stackoverflow.com/questions/67990582

            QUESTION

            How to improve divide-and-conquer runtimes?
            Asked 2021-Jun-15 at 17:36

            When a divide-and-conquer recursive function doesn't yield runtimes low enough, which other improvements could be done?

            Let's say, for example, this power function taken from here:

            ...

            ANSWER

            Answered 2021-Jun-15 at 17:36

            The primary optimization you should use here is common subexpression elimination. Consider your first piece of code:

            Source https://stackoverflow.com/questions/67987701

            QUESTION

            How do you suppress this warning in VS: "The type of schema applied to the document is not supported"
            Asked 2021-Jun-15 at 13:16

            This morning I created an MSTest project in C#, and for one of the JSON resources, Visual Studio is showing this warning:

            ...

            ANSWER

            Answered 2021-Feb-02 at 17:38

            Apparently all you have to do is to close out the file. It seems to only show when the file is opened.

            Perhaps a later version of Visual Studio can make this warning behave more consistently with a standard warning in VS. Really it behaves very much like a refactoring / code cleanup suggestion (which commonly has a grey, squiggly line), rather than an actual warning. It's like it's just been mislabeled in development or whatever. However the good thing is that as long as the file is closed, it doesn't pollute the build or the errors window with warning messages.

            Source https://stackoverflow.com/questions/65993271

            QUESTION

            How to convert a pair of iterator into a view?
            Asked 2021-Jun-15 at 11:41

            I have a pair of iterator, and I would like to use ranges::views::filter(some_predicate) on it (with the pipe operator). AFAIU I should first convert my pair of iterator into a view. I tried to use ranges::subrange(first, last) to do so, but I’m getting horrible error messages.

            Note1: I’m using C++14 and range-v3 version 0.9.1 (the last version compatible with gcc-5.5). If the solution differs when using C++17/20 and/or when using C++20 std::ranges, I’m also interested to know what changed.

            Note2: I find the documentation of range-v3 severely lacking, so I’m using cppreference.com. If you know a better documentation, I’m very interested.

            EDIT:

            In my real code, I’m wrapping a java-style legacy iterator (that has a next() method instead of operator++/operator*. I’m wrapping them in a C++-compatible wrapper. Then I tried to convert that wrapper into a view, and finally filter it. I reproduce a minimal example on godbolt. This use iterator_range as suggested, but it still doesn’t compile (see the second edit below).

            ...

            ANSWER

            Answered 2021-Apr-08 at 16:24

            In ranges-v3, there is iterator_range which you can use to wrap the iterators into a range object.

            In C++20, you can use std::span to wrap those iterators into an range object

            Source https://stackoverflow.com/questions/67007908

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

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            Install C-

            You can download it from GitHub.

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