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GCC is the GNU Compiler Collection. It's the de facto standard compiler for C, C++, Go, Fortran, and Ada on Linux and supports many other languages and platforms as well.
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When GCC does not provide __cpp_lib_uncaught_exceptions feature?
Following piece of code does not work right on Alpine Linux:
#ifndef __cpp_lib_uncaught_exceptions
namespace std {
int uncaught_exceptions() noexcept {
return std::uncaught_exception();
...
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Large header file vs compilation time [closed]
Im working on a large project, my issue is as follows:
I have a large (200k lines of code) header file which is auto generated code, it contains about 3k classes (all of them are small classes).
And ...
2
votes
3
answers
34
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using C copy a 1D char array into 2D char array
I am trying to copy a 1D array of Strings into a 2D array of strings in C.
I was able to achieve this with integer
enter image description here
//Here is what I tried for integers.
int main()
...
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rpc/rpc.h file not found on windows
I am working on sunrpc library developed by Sun Microsystems on windows.
I have downloaded GnuWin32 sunrpc4.0 on windows 10.
I am running rpcgen -a -C -Y "C:/MinGW/bin" add.x command and I ...
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How to use GCC PGO with source code in different folder?
I've compiled PGO-instrumented build from A/src and collected the profile. Now I want to apply this profile when building from B/src. Is this possible? GCC complains about the lack of profile since ...
2
votes
1
answer
17
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bad defsym; format is --defsym name=value
Explanation: I've created an STM32 project and aim to get a platform-independent build and output file like .hex, .bin, and .elf. For this, I created the project under the CMake build system. CMake ...
2
votes
1
answer
36
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What is unlocked_stdio in C?
So, I was looking for random linux manual pages, when I encountered this weird one, you can see it by executing "man unlocked_stdio", or you can view it in your browser by going to this page
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RISCV inline assembly compilation
To start with optimizing my code I have to start with adding assembly code into my C which is crosscompiled with gcc riscv toolchain, to start with I trying to implement simple riscv inline as follows
...
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Installed gcc 12.1.0 in /usr/local/bin and now ubuntu cannot find and point to it
I have tried all the solutions of similar questions and none works.
I have installed gcc in /usr/local/bin and this my PATH variable
echo $PATH
/usr/local/gcc-12.1.0/bin:/usr/local/sbin:/usr/local/bin:...
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Reading an update across threads
In my application, I have a block of shared memory, which one thread periodically writes to, and another thread periodically gets (and then sets to 0)
Thread 1:
@onevent:
__atomic_store(addr, val, ...
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charconv header not found gcc 12
I'm running Debian 9 on WSL 2 and I'm trying to compile C++ code that uses the <charconv> header. I have the line set(CMAKE_CXX_STANDARD 17) in my Cmake file so it's definitely using C++ 17 but ...
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Replacement for Omagic flag?
When switching from using GCC to CLANG, for some reason including the -N/--omagic flag increases my .elf executable size by ~1000x, as the physical address of an init_array section that is otherwise ...
0
votes
1
answer
40
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memcpy for volatile arrays in gcc C on x86?
I am using the C volatile keyword in combination with x86 memory ordering guarantees (writes are ordered with writes, and reads are ordered with reads) to implement a barrier-free message queue. Does ...
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1
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cannot open source file stdio.h C in vscode
I've been trying to learn C recently.
When I execute the following code in visual studio code:
#include <stdio.h>
int main()
{
// variable declaration
int a, b, c;
// user ...
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ARM crashing upon returning from a function [closed]
The device consists of an Cortex M4 main processor and an Cortex M0+ co-processor running the network stack.
I've been trying to influence the bluetooth advertisement beacon behavior - when are they ...
