I am trying to compile a simple hello program using gcc, but getting the below error. i am using ubuntu. gcc -g -o hello hello.c collect2: fatal error: ld terminated with signal 11 [Segmentatio...

Consider the following simple code: template<typename ...types> class myclass { using payload_type = mylib::type_traits::type_or_tuple_t<types...>; template<typename... T> std...

I know that, generally, we can forward-declare enums in C++11. So, why does this: enum kind_t { kind1, kind2 }; template <kind_t Kind> struct foo {}; template <> struct foo<kind1&g...

I have installed gcc-10 compiler on my ubuntu 20.04. I needed to test the work of coroutine ts, so I found an example using coroutines and tried to compile it. exemple: #include <coroutine> #...

I was playing around with Compiler Explorer and ran into an anomaly (I think). If I want to make the compiler vectorize a sin calculation using libmvec, I would write: #include <cmath> #def...

I am trying to ignore the unused parameter warning using the new c++17 attribute [[maybe_unused]], as below. int main([[maybe_unused]] int argc, char** argv) { //... } But I still get warning: ...

I have some C++0x code. I was able to reproduce it below. The code below works fine without -std=c++0x however i need it for my real code. How do i include strdup in C++0x? with gcc 4.5.2 note i...

I would like to disable specific known warnings in C++ code coming from a library header when compiling my own code. There are clang and gcc specific methods for disabling the warnings. The way thi...

I get massive output with the following message (differentiated only by hex address): ld.exe: DWARF error: could not find variable specification at offset 101cee What is the meaning of this error ...

When I run cargo install cargo-binutils, I get the below error. I have gcc installed and in my path, to the point where where gcc correctly returns the location. gcc version: gcc.exe (i686-posix-...

I am new to c++. I want to ignore warning -Wunused-result which I guess popped because of -Wall flag. I did search on net and found that this is I can ignore it by declaring a pragma. I don't have ...

I'm new to c++ and I'm learning about vector. I wrote a basic code to see how it works but i get the following errors. ||=== Build file: "no target" in "no project" (compiler: unknown) ===| C:\Use...

I'm trying to compile something that depends on gtkspell, which depends on enchant, under MinGW. I'm getting errors like gtkspell/gtkspell.c:757: undefined reference to '_imp__enchant_broker_init'...

I have this code: #include <stdio.h> #include "SDL/SDL.h" SDL_Surface *screen = NULL; int main(int argc, char* args[]) { SDL_Init(SDL_INIT_EVERYTHING); screen = SDL_SetVideoMode(640, 4...

I want to get the address of _GLOBAL_OFFSET_TABLE_ in my program. One way is to use the nm command in Linux, maybe redirect the output to a file and parse that file to get address of _GLOBAL_OFFSET...

Everytime I compile and run c file, I have to type: gcc filename.c a.out I don't want to do this in two lines, How to compile and run in one line on linux terminal?

Are there any known false positives with Valgrind? I get a 'Conditional jump or move depends on uninitialised value(s)' with the fmemopen function, writing in C and compiling with GCC. Can I be sur...

Recently we switched to a more recent GCC and it optimized away a whole function and replaced it with "null pointer access" trap code instead when optimizing for size. Looking at godbolt,...

I read here it is C90 with extensions. How can I know for sure?

I have a map in a multithreaded app mapping a class called uuid to pointer. What I want to know if an insert operation succeeded for failed. e.g. _mymap.insert(hint, MyMap::value_type(entry.uuid,...

I am trying to set up a cross-compiler for i686-elf on Ubuntu following the OSDev GCC Cross-Compiler Tutuorial. However, the code to set up GCC fails to build every time. I know my sources are not ...

Here is a bounded loop that increments two locations of the same buffer. unsigned int getid(); void foo(unsigned int *counter, unsigned int n) { unsigned int A = getid(); unsigned int B = getid()...

When building projects in C++, I've found debugging linking errors to be tricky, especially when picking up other people's code. What strategies do people use for debugging and fixing linking error...

I'm trying to learn operation system using i386-elf-gcc on my mac pro. Os version is Sierra. I use Macports to install the compile environment by typing sudo port install i386-elf-gcc in bash. But ...

I'm getting the following gcc format-truncation warning: test.c:8:33: warning: ‘/input’ directive output may be truncated writing 6 bytes into a region of size between 1 and 20 [-Wformat-truncatio...