I installed Fedora on my machine. I'm very new at Linux but would like to start coding in C++. I would like to know the steps to write and compile a Hello World program using C++ in Linux. (I've been a Microsoft person all my life).
View 4 RepliesI am trying to learn C Programing and I'm having trouble on the output of my script. my script should count the characters in input but it doesn't give me any numbers..
here's my program code:
Code:
#include <stdio.h>
main()
{
double nc;
[code]....
compile package C++ with GNU compiler under Linux, I can share my program's
View 3 Replies View RelatedI am using a arm compiler to build my program but getting following compiler error at the end -
init.c.text+0x2c): undefined reference to '__libc_csu_fini'
init.c.text+0x34): undefined reference to '__libc_csu_init'
I am using the C++ compiler G++ to compile my programs on Linux Mint 8 - Gnome.
I recently installed QT and when I tried to compile a simple "Hello World!" program it gave me this error:
Quote:
This is the code in HelloWorldQt.cpp:
Code:
I have tried using GTK instead but I get a similar error.
I'm reading about GNU CPP(GNU C preprocessor). In the CPP manual -> 1.1 Character sets:
Code:
After preprocessing is complete, string and character constants are converted again, into the execution character set. This character set is under control of the user; the default is UTF-8, matching the source character set. I think "under control of the user" means to use the option -fexec-charset=, right? And in the above part, it says pretty clear: "After preprocessing is complete", so the job -- "string and character constants are converted again, into the execution character set" -- should be done by the C compiler(compilation proper), not GNU CPP. Then the option -fexec-charset= should be an option controlling the C compiler, not the preprocessor. But in the GCC manual, this option is listed in the "3.11 Options Controlling the Preprocessor". I don't understand this, If this option is an option controlling the preprocessor, it conflicts with the CPP manual. How to understand this?
I have a large existing codebase that all compiles under Ubuntu 8.04 with g++ using Scons. I've been given the task of getting it to compile for Arm9 running uclinux. I have a arm-elf-g++ compiler that I need to use instead of the gcc version. I ended up borking my /usr/lib/scons/SCons/Tool/g++.py file to use arm-elf-g++ instead of g++, but I know that this is not correct, as I have to go edit that file every time I change compilers.
These are the 2 lines I switch out:
Code:
compilers = ['arm-elf-g++']
#compilers = ['g++']
I simply can not find anywhere in the scons documentation that indicates how to tell it to use a different compiler. It seems that it would go under "Environment" but beyond that I'm lost. The CPPPATH variable seems like it only tells scons where to find #include files. I suppose I could rename arm-elf-g++ to g++ and just set my path to find that one first, but that seems like a bit of a hack as well. It would also break other things on my machine.
I'm trying to figure out how pthreads are mapped from the compiler to the Linux kernel. The pthread prototypes are found in a compiler header file (pthread.h), yet the kernel would be responsible for scheduling the threads. So, how does the compiler resolve the pthread symbols at compile time?
View 1 Replies View Relatedis there any way of using wherey() of turbo c function in gcc compiler like we have for gotoxy(), clrscr() functions.....
View 2 Replies View RelatedI am using makefile to complile all C Programming files. But certain files are not getting compiled and hence its object file is not getting generated. This is happening due to files haven't been modified for a long time. It seems that compiler knows that its object file is there hence no need to complie it actually it is not.
View 14 Replies View RelatedHow can I disable structure alignment feature of gcc using command-line options ?I recently migrated to 64-bit OS, and doubt that I might be experiencing a structure alignment problem due to the new 64-bit architecture.I checked the sizes of the same C-style struct in both x86 and x86_64, and found out that they appear to be different by 20 bytes.I am not sure if this is due to structure alignment or the differences in data type lengths between two platforms.Hence, I will first disable the structure alignment feature, and then check the struct sizes again.
View 3 Replies View RelatedI am using g++ 4.5.2 I copied and tried a piece simple (Making a Class Writealbe to a Stream) program, from page 363 of book(C++ cookbook), Example 10-6 your can download and test by yourself [URL]
[Code]....
So for those of you who has built GCC from source would know that you can't install GCC without an existing GCC. So my question is, what would happen if all computers in the world suddenly just died, and all you had was the computer in front of you, and a copy of GCC 4.5. How would you install that?
I ask because I would like to install GCC 4.5 on my old powerbook G4 mac without installing a binary GCC provided by Tiger 10.4 disks. I would like to build GCC from source, without an existing GCC to complicate updating.
I have moved from MS directX to OpenGL on Linux Debian. My computer is running Jessie version with Gimp. I am trying to use several of the gl 4.0 functions but getting compiler error. I check for OpenGL version and appears to be version 1.5 .... How can I verify the correct openGL version and how can I upgrade to a moder version of at least 4.0?
View 4 Replies View RelatedMy Linux: Fedora 14 x64
My gcc: 4.5.1
My Glibc: 2.12.90
target Linux: "Ubuntu 8.04.4 LTS" hardy
target kernel: 2.6.24-29-server x64
target gcc: 4.2.4 target Glibc: 2.7
I need gcc/g++ and fortran. I Googled and most documents I found are somehow outdated and targeting for ARM, not for other Linux.
I changed the complier PGI to Intel. But i had some error message p4_error: interrupt SIGSEGV: 11 This error message was occured using intel compiler I don't know what is the ploblem.
View 2 Replies View RelatedI am working for a product which was evolved over a decade. There I have some combination of C style coding and C++ coding in same libraries. I am landing on some instances where C style function is expecting forward declarations for some other function for which I can not declare (due to design and architecture). Is there any g++ compiler option that directs the g++ to look whole preprocessed file (because definition is there down in the preprocessed file) than only forward in the preprocessed file. All these years this code is working as we are using CC compiler and that looks entire preprocessed file than only in the forward direction.
<Sample Code
Header1.h file
Function1()
{
[code]....
if I can not include Header2.h first then Header1.h. I have to include Header1.h and Header2.h because on the design hierarchy in this product. Also the function definitions are in header files as they are either template functions or functions expanded through macros.
This is my first post. I am unable to call some of the fftw3 library functions in a very simple fortran code. The code is as follows (the filename is trial.f):
Code:
program trial
implicit none
[code]...
I am trying to build a cross GCC compiler for PPC476. I applied all the relevant patches. Cross compiler build was successful. When I try to compile the source code using the cross compiler I am getting the below error message. I think this is something related to linker.
Code:
cow_shim_funcs_startup_shutdown.o cow_shim_utils.o ../../dm/cfg/cfgi.a ../../dm/pl2/libsas21xxpl.a ../../raid/pfk/libpfk.a
/home/Raghu/gcc/cross-compiler/ppc/tools/lib/gcc/powerpc-unknown-linux-gnu/4.3.1/../../../../powerpc-unknown-linux-gnu/lib/libgcc_s.so: could not read symbols: File in wrong format
collect2: ld returned 1 exit status
make: *** [app.out] Error 1
I am writing a C program which is contains Mysql header files and APIs but it can not compile it and its error is : Quote: undefined reference to
to all of Mysql APIs that I included their headers .In command line I compile my source like this with no problem: Quote: gcc test.c -Wall -o test -lz `mysql_config --cflags --include --libs`
I think code block does not have bold italic part of this command. How can I add this to code block to compile my project or those project that contains Mysql APIs (just my project not all of defined projects that has no relation to mysql APIs)with this gcc flags.
I am writing a C program which is contains Mysql header files and APIs but it can not compile it and its error is :
Quote:
undefined reference to
to all of Mysql APIs that I included their headers .In command line I compile my source like this with no problem:
Quote:
gcc test.c -Wall -o test -lz `mysql_config --cflags --include --libs`
I think code block does not have bold italic part of this command. How can I add this to code block to compile my project or those project that contains Mysql APIs (just my project not all of defined projects that has no relation to mysql APIs)with this gcc flags.
I have the plugin installed ok and have pasted in a C source file that I know works and am getting the following errors, I think because the linker options need to be set in some way. I cannot copy the errors but they all complain of implicit declaration of functions like this: -
warning: implicit declaration of function strlen
But I have the headers included, is this a linker problem? Here is the code -
#include <stdio.h>
#include <math.h>
int main(){
[code]...
where I can download the GNU compilers. I installed Fedora 11 today dual botted with 64-bit Vista on an HP 64-bit computer. I found a little short description on gnu.org, but no links to download sites. Since I don't have a compiler installed already I will need to install the binarys instead of the source code.
View 7 Replies View RelatedHow can i get g++ compiler in ferdora 14. i cant compile any program in frdora 14.
View 3 Replies View RelatedIm using Fedora 10, and I need to install a c, and c++ compiler. I've downloaded codeblocks, but when i try to compile and run the code, nothing will happen. What other compiler should i use? what is the best c++ compiiler for fedora?
View 5 Replies View RelatedI have recently installed Fedora 11 and I am having some trouble with it. While installing another program I get the message: make: g77: Command not found
I tied to look for the compiler to install using yum search g77
And got the following list:
I was wondering if it is in some obscure repository, which would seem odd to me. I have the following repositories available (as shown in yumex) :
I am in the process of building some packages with the Intel compiler (icc) and was wondering how to make it the default compiler when using rpmbuild.
View 3 Replies View Relatedi just installed fedora 14 and which gcc shows that there is no C++ compiler . How can i download G++ 4.5 version without download the entire development tools. Last time i tried yum groupinstall "Development Tools" and that took ages with no result.. I just want to install C++ ..
View 2 Replies View Relatedi just installed fedora and i want to install a couple programs but i keep getting the same message saying that no acceptable c compiler was found, so i downlpoaded the gcc packlage, extracted it, navigated to it in the terminal, and ran ./configure but it tells me that there was no acceptable c compiler found, whats going on here, i need an acceptable c compiler to install a c compiler this is real confusing
View 14 Replies View RelatedAs a result, I want to know what this error means, and how to correct it.Here is my code:
Code:
#include <iostream>
#include <cmath>
#include <cstring>
using namespace std;
[code]....
It is once I use the 'try_crack' function inside of main that I get this error.