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.
-1
votes
1answer
19 views
return makes pointer from integer without a cast - but types are okay?
Just some code. In one file and its header:
// header:
extern char * thessc_config_member_get_config_key(struct config_member_t *m);
// implementation:
inline char * ...
0
votes
0answers
16 views
C/C++ Run/Debug configuration in Eclipse
I am new to C/C++ development in Eclipse and trying to configure Eclipse. I'm working in a Linux environment with GNU GCC and my toolchain is detected by Eclipse. As given in the Eclipse documentation ...
0
votes
1answer
39 views
Structure packing with C macros
I'm trying to implement #pragma pack directive through _Pragma оperator, to create macros for data structure alignment.
All this is described in the book in the book "C: In a Nutshell"
#define ...
1
vote
1answer
12 views
Building issue of Scikit-learn Python library in Windows
I'm trying to build scikit-learn library for Python which has it's build files as c++ files in a Windows 32-bit system. While building I get the following error.
undefined reference to ...
0
votes
1answer
52 views
Linker error-Calling function in C++ file from C file
I am trying to execute basic code in C and C++ in Linux environment.
I am using eclipse to run it. Current project is created as C project.
All I am trying to do is to call a function from different ...
1
vote
0answers
20 views
Padding with multiple derivation of empty classes. Only under Windows
We had a problem today where my code was generating crazy prices. I eventually boiled it down to the fact that my message classes were the wrong size, even though I am packing on one byte and have ...
0
votes
0answers
17 views
Python 'gcc-4.2' error with Xcode
I am attempting to download gdal via the "brew install gdal" command. However, I am getting the output:
==> /usr/local/bin/python setup.py install --prefix=/usr/local/Cellar/gdal/1.10.0 ...
-6
votes
0answers
89 views
gcc is super slow [on hold]
From some reason my gcc compiler is taking 2 minutes to compile.
I'm testing it with the basic hello world program so it is not the code. I tried code blocks and wxdev, both work fine but compiling ...
0
votes
0answers
34 views
C++ Auto-vectorization of STL vector on GCC 4.6.3
Setup
I get curious behaviours when trying to vectorize a code on GCC 4.6.3.
In the following is the snippet code using 3 different ways to perform a simple addition.
loopFunc() uses pointers.
...
0
votes
0answers
38 views
no matching function for call to 'lower_bound' with newer gcc
I'm having some trouble compiling code that uses std::lower_bound on systems with newer versions of gcc. From my tests, 4.1 works, but 4.6 fails.
Here is the relevant code snippet:
template ...
1
vote
0answers
23 views
Obtaining MinGW installation with GCC 4.1.1
I need to use the GCC compiler version 4.1.1 on Windows, from a MingGW distribution if possible.
I've been looking for a way to install an older version with the mingw-get installer but I don't find ...
0
votes
2answers
34 views
Silly C++ linking trouble in GCC
Sorry for the non-specific question title. On short, here's what I have:
file1.cpp
#include "file1.h"
int main()
{
somefunc();
}
file1.h
#pragma once
#include "file2.h"
int somevar;
...
7
votes
2answers
77 views
combination of unary minus and float conversion
Consider the following C statements:
unsigned long x = 1;
float a = -x;
double b = -x;
I would expect the unary minus term to yield an unsigned long value equal to ULONG_MAX and a and b to be set ...
-3
votes
1answer
41 views
How can activate C syntax highlighted in VIM?
I have an image with CentOS, GCC compiler, and VIM editor. With a long period time ago i achieved to activate C syntax highlighted but i don't remember how, if you could help ?
1
vote
3answers
33 views
Testing FPU on arm processor
I am using a Wandboard-Quad that contains an i.MX6 ARM processor. This processor has an FPU that I would like to utilize. Before I do, I want to test how much improvement I will get. I have a ...
