Questions tagged [gcc]
GCC is the GNU Compiler Collection. It's the de facto standard C compiler on Linux and supports many other languages and platforms as well.
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GCC: assembly listing for IA64 without an Itanium machine
I need to try the following thing: I would like to compile some simple C code samples and see the assembly listing generated by GCC for IA64 architecture, i.e. I just want to run GCC with the -S ...
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How To Share Code Between Assembly Files In A Modular Way
Recently, I started learning Arm64 assembly. The assembler I'm using is the GNU Assembler (GAS). The version of GAS I'm using is GNU assembler (GNU Binutils for Ubuntu) 2.42.
I want to make my code ...
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How to prevent 'global variables' in a big project?
With 'global variables', I mean
Variables on namespace level
Static data members in classes
Static variables in functions
In a big C++ project I would like to have a mechanism (like a compiler option) ...
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What does the filename "gmon.out" stand for?
The GNU compiler toolset has a profiler "gprof" for performance analysis of C++ programs. With the -pg switch, the gcc compiler will make executables that write a data file, "gmon.out&...
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How to write a very basic compiler
Advanced compilers like gcc compile code into machine readable files according to the language in which the code has been written (e.g. C, C++, etc). In fact, they interpret the meaning of the code ...
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How can I tell what standard my C is in?
Okies, totally newbie question here. I can read the code, mimic the code and understand the basics to be deadly. But, I never really took the time to understand what ANSI C really meant. I just look ...
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Is there a way to use gcc as a library?
Anyone knows a solution that works something like this:
#include <stdio.h>
#include <gcc.h> /* This .h is what I'm looking for. */
int main (void) {
/* variables declaration (...) */
...
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Isn't there a chicken-and-egg issue since GCC is written in C++ itself?
Since 4.8 release, the C++ compiler GCC (the G++ part of it) is written not in C anymore, but in C++ itself. I have a hypothetical question on this.
I wonder how to compile the C++ code of GCC on a ...
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Why C allows multiple global declarations of the same variable but NOT multiple local declarations?
I noticed that if I declare a global variable multiple times the compiler does not even output a warning.
However if I declare a local variable in a function multiple times, for example, the gcc ...
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GCC or Clang to output bytecode for a VM?
Long story short, I wanted to use C as a scripting language and in a portable manner so I created a register-based, JITless VM to accomplish this.
I've formalized the VM's ISA, script file format, ...
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Does the gcc optimize out local arrays the same way it would optimize out a local variable?
If I write this code in a function:
void func(void)
{
int x = 0;
int y = 3724832+x;
}
It would (probably) optimize the variable y out because it isn't being used. Even if I'm wrong about this ...
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Whether to use -pedantic flag in g++ or not?
I'm learning C++ and I'm using g++ on Linux for practicing.
I want to know if people working as programmers use g++ -pedantic flag and also its importance in real world.
What about other compilers, ...
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How to port gcnew and gcroot from Visual C++ to gcc [closed]
I have the task to port some code from Visual C++ to gcc.
Some calls are gcnew and gcroot to handle managed code inside cpp module.
How can these calls be ported to gcc in a fashionable way?
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In C++ and GCC on Linux, is it possible to allocate memory to your swap space instead of your RAM?
I have a large hash, around 6 gigabytes that I load into memory. On my current laptop that I develop from, it really does a number on my system, causing massive amounts of lag while I try to go about ...
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Logically, is there a reason why ++i++ can not be a valid expression?
I had to increment my integer twice in a loop, so I thought I would try and be clever:
for (int i = 0; !sl.isEmpty(); ++i++) { ... }
++i++ however is not an assignable expression, at least in GCC.
...
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