gcc | This directory contains the GNU Compiler Collection | Compiler library

 by   gcc-mirror C Version: releases/gcc-11.4.0 License: GPL-2.0

kandi X-RAY | gcc Summary

kandi X-RAY | gcc Summary

gcc is a C library typically used in Utilities, Compiler applications. gcc has no bugs, it has a Strong Copyleft License and it has medium support. However gcc has 4 vulnerabilities. You can download it from GitHub.

This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.
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            kandi-support Support

              gcc has a medium active ecosystem.
              It has 7752 star(s) with 4068 fork(s). There are 350 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              gcc has no issues reported. There are 41 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of gcc is releases/gcc-11.4.0

            kandi-Quality Quality

              gcc has no bugs reported.

            kandi-Security Security

              gcc has 4 vulnerability issues reported (0 critical, 2 high, 2 medium, 0 low).

            kandi-License License

              gcc is licensed under the GPL-2.0 License. This license is Strong Copyleft.
              Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.

            kandi-Reuse Reuse

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

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            gcc Key Features

            No Key Features are available at this moment for gcc.

            gcc Examples and Code Snippets

            Get the GCC version .
            pythondot img1Lines of Code : 30dot img1License : Non-SPDX (Apache License 2.0)
            copy iconCopy
            def get_gcc_version(self):
                gcc_major_version = 0
                gcc_minor_version = 0
                # check to see if gcc is present
                gcc_path = ""
                gcc_path_cmd = "command -v gcc"
                try:
                  gcc_path = subprocess.check_output(gcc_path_cmd, shell=True,
                  
            Set the GCC host compiler path .
            pythondot img2Lines of Code : 21dot img2License : Non-SPDX (Apache License 2.0)
            copy iconCopy
            def set_gcc_host_compiler_path(environ_cp):
              """Set GCC_HOST_COMPILER_PATH."""
              default_gcc_host_compiler_path = which('gcc') or ''
              cuda_bin_symlink = '%s/bin/gcc' % environ_cp.get('CUDA_TOOLKIT_PATH')
            
              if os.path.islink(cuda_bin_symlink):
                  
            Set the host gcc version .
            pythondot img3Lines of Code : 20dot img3License : Non-SPDX (Apache License 2.0)
            copy iconCopy
            def set_host_gcc_version(self, gcc_major_version, gcc_minor_version):
                # True only if the gcc version in the tuple is >=
                # min_gcc_major_version_, min_gcc_minor_version_
                if gcc_major_version < self.min_gcc_major_version_:
                  print  

            Community Discussions

            QUESTION

            Clang errors "expected register" with inline x86 assembly (works with GCC)
            Asked 2021-Jun-16 at 00:48

            I wrote a demo with some inline assembly (showing how to shift an array of memory right one bit) and it compiles and functions fine in GCC. However, the with Clang, I'm not sure if it's generating bad code or what but it's unhappy that I'm using memory despite the "rm" constraint.

            I've tried many compilers and versions via Godbolt and while it works on all x86/x86_64 versions of GCC, it fails with all versions of Clang. I'm unsure if the problem is my code or if I found a compiler bug.

            Code:

            ...

            ANSWER

            Answered 2021-Jun-16 at 00:48

            I'm unsure if the problem is my code or if I found a compiler bug.

            The problem is your code. In GNU assembler, parentheses are used to dereference like unary * is in C, and you can only dereference a register, not memory. As such, writing 12(%0) in the assembly when %0 might be memory is wrong. It only happens to work in GCC because GCC chooses to use a register for "rm" there, while Clang chooses to use memory. You should use "r" (bytes) instead.

            Also, you need to tell the compiler that your assembly is going to modify the array, either with a memory clobber or by adding *(unsigned char (*)[16])bytes as an output. Right now, it's allowed to optimize your printf to just hardcode what the values were at the beginning of the program.

            Fixed code:

            Source https://stackoverflow.com/questions/67993984

            QUESTION

            How to use make file functions with $@ to generate prerequisites?
            Asked 2021-Jun-15 at 22:52

            I want to extract the name of a prerequisite from the target.

            ...

            ANSWER

            Answered 2021-Jun-14 at 13:53

            The short answer is, you can't. Automatic variables, as made clear in the documentation, are only set inside the recipe of a rule, not when expanding the prerequisites. There are advanced features you can take advantage of to work around this, but they are intended only to be used in very complicated situations which this isn't, really.

            What you want to do is exactly what pattern rules were created to support:

            Source https://stackoverflow.com/questions/67959792

            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

            Why these 2 simple codes give different results
            Asked 2021-Jun-15 at 15:48

            Code 1

            ...

            ANSWER

            Answered 2021-Jun-15 at 10:28

            For starters the compiler should issue a message for this code snippet

            Source https://stackoverflow.com/questions/67984121

            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

            QUESTION

            GStreamer C library not working properly on Xubuntu
            Asked 2021-Jun-15 at 11:39

            I am writing a program in C language using gtk3 library. I want it to be able to receive a h264 video stream from a certain IP address (localhost) and UDP/RTP PORT (5000).

            In order to do it, I am using gstreamer to both stream and receive the video.

            I managed to stream the video using the following pipeline :

            send.sh :

            gst-launch-1.0 filesrc location=sample-mp4-file.mp4 ! decodebin ! x264enc ! 'video/x-h264, stream-format=(string)byte-stream' ! h264parse ! rtph264p

            I managed to display the video in a new window using the following pipeline :

            receive.sh :

            gst-launch-1.0 udpsrc port=5000 caps="application/x-rtp,encoding-name=H264" ! rtph264depay ! decodebin ! videoconvert ! autovideosink

            At this point, everything works fine. But now I want to receive the stream and display it inside my C/GTK program. I am using the following code (found on internet and adapted to make it compile) :

            ...

            ANSWER

            Answered 2021-Jun-15 at 11:39

            Here is the solution I found :

            Changin xvimagesink by ximagesink :

            sink = gst_element_factory_make ("xvimagesink", NULL); g_assert(sink);

            becomes

            sink = gst_element_factory_make ("ximagesink", NULL); g_assert(sink);

            Hope it will help some of you facing the same problem.

            Source https://stackoverflow.com/questions/67808075

            QUESTION

            Unable to initialize const unordered_map> using initializer list
            Asked 2021-Jun-15 at 05:33

            So here is the function:

            ...

            ANSWER

            Answered 2021-Jun-15 at 05:26

            The value type of your unordered_map is std::variant, but in your brace init list, you're passing float instead of a double. This conversion from float to a variant is not allowed.

            Either change your value type to std::variant, or pass literals of float type, e.g. 1.5f instead of 1.5.

            The minimized issue in code is

            Source https://stackoverflow.com/questions/67980273

            QUESTION

            why "A stack overflow in task iot_thread has been detected" is coming continuously?
            Asked 2021-Jun-14 at 22:09

            I'm working on an aws/amazon-freertos project. In there I found some unusual error "A stack overflow in task iot_thread has been detected".

            Many time I got this error and somehow I managed to remove it by changing the code.

            I just want to know what this error means actually?

            As per what I know, it simply means that the iot_thread ask stack size is not sufficient. So it's getting overflow.

            Is this the only reason why this error comes or can there be another reason for this?

            If yes then where should I increase the stack size of the iot_thread task?

            Full Log:

            ...

            ANSWER

            Answered 2021-Jun-14 at 22:05

            It simply means that the iot_thread ask stack size is not sufficient. [...] Is this the only reason why this error comes or can there be another reason for this?

            Either it is insufficient you your stack usage is excessive (due to recursion error or instantiation of instantiation of large objects or arrays. Either way the cause is the same. Whether it is due insufficient stack or excessive stack usage is a matter of design an intent.

            If yes then where should I increase the stack size of the iot_thread task?

            The stack for a thread is assigned in the task creation function. For a dynamically allocated stack that would be the xTaskCreate() call usStackDepth parameter:

            Source https://stackoverflow.com/questions/67970388

            QUESTION

            Why does my variadic template instantiation not work?
            Asked 2021-Jun-14 at 10:56

            I am revisiting C++ after a long hiatus, and I would like to use templates to design the known "map" function -- the one which applies a specified function to every element of some specified "iterable" object.

            Disregarding the fact my map doesn't return anything (a non-factor here), I have managed to implement what I wanted if the function passed to "map" does not need to accept additional arguments:

            ...

            ANSWER

            Answered 2021-Jun-13 at 20:41

            A simple way to fix this would be to deduce the non-type template parameter for the function, and reorder the template parameter list

            Source https://stackoverflow.com/questions/67962170

            QUESTION

            How to change the integrated shell run command in VSCode?
            Asked 2021-Jun-14 at 07:35

            VSCode runs the following commands in the integrated terminal when I press f5 or ctrl-f5,

            ...

            ANSWER

            Answered 2021-Jun-14 at 07:14
            You Will Need to Create a Task:

            The command you want to build, will have to be built using a task. Once built in a task, you can then bind it to which ever key configuration you like. Before I answered this I built a simple example to help demonstrate what I just said.


            STEP-1: Create the Necessary Tasks JSON File:

            Create a tasks.json file in the .vscode directory. You can use this command from your projects root:

            /$ mkdir .vscode; touch .vscode/tasks.json
            NOTE: "if you already have a .vscode dir, then just use $ touch .vscode/tasks.json"


            STEP-2: Create the Customized Task That Fits Your Needs:

            Tasks are like creating complicated keybinding (well sort'a), its more like a complex keybinding that took steroids, and can do a bunch of stuff keybindings cannot do. All BS aside, it is an extremely powerful tool. VSCode users that are not using it, are missing out on one of the most powerful features that VSCode offers. Anyhow, this is how you create a task that, in-a-nutshell, defines and executes a shell command.

            Source https://stackoverflow.com/questions/67962527

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

            Vulnerabilities

            No vulnerabilities reported

            Install gcc

            You can download it from GitHub.

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