I downloaded Eclipse from Yoxos. This Eclispe includes: c, cpp, java etc..
However, when I opened a new cpp project with MinGW GCC Toolchains, and created a cpp file: hello.cpp, and wrote the following little program:
#include <iostream>
int main() {
std::cout << "Hello World!";
return 0;
}
when I run the file, it said - hello.exe has stopped working.
However, When I changed the program to:
(first line in comment)
//#include <iostream>
#include <stdio.h>
int main() {
printf("dsd");
return 0;
}
It worked well!
and when I removed the first line from comment like this:
#include <iostream>
#include <stdio.h>
int main() {
printf("dsd");
return 0;
}
the problem was back.. :(
Someone, Help..?
Thanks in advance! :)
Build Console Output:
20:41:10 **** Incremental Build of configuration Release for project hello ****
Info: Internal Builder is used for build
g++ -O3 -Wall -c -fmessage-length=0 -o helo.o "..\\helo.cpp"
g++ -o hello.exe helo.o
20:41:11 Build Finished (took 610ms)
Related
I have a C++ program which I am compiling on a x64 machine running Windows 10 with g++ x86_64-win32-seh-rev2 v7.1.0, using the command g++ -g main.cpp. When I run my program, I get the error 0xc000007b. This is my code
#include <iostream>
using namespace std;
int main() {
cout << "Hello World";
return 0;
}
When I compile with this code
#include <stdio.h>
using namespace std;
int main() {
printf("Hello World");
return 0;
}
It works fine. When I run it in gdb, it runs fine.
I have seen other posts where there are dlls being used that do not support the architecture, but I don't think I am using any dlls in this application, unless they are being added by g++
I am trying to implement Header Files with Source Files using C++, but in the terminal the give me some errors.
Here is the code:
main.cpp
#include <iostream>
#include "add.h"
using namespace std;
int main()
{
cout << "The Sum of 3 and 4 is: " << add(3,4) << endl;
return 0;
}
add.cpp
int add(int x, int y)
{
return (x + y);
}
add.h
#ifndef ADD_H
#define ADD_H
int add(int x, int y);
#endif
Terminal Messages:
Try g++ -o add.o add.cpp followed by g++ -o HeaderTest main.cpp add.o.
Your code in C++ is perfectly fine.
What you need is probably some adjustments in building.
You should either read on how to build, i.e. compile and link manually or use some IDE, or at least build system like Make, CMake, QMake etc.
If you want to do this by hand please provide command you have used to build this sample.
You did use the C-compiler. The warning tells you that you provide C++-code to the C-compiler. In case you want to get rid of this warning, try clang++ -o add.o add.cpp followed by clang++ -o HeaderTest main.cpp add.o
In my Homebrew installation my libraries are compiled with clang, whereas I would like to, for performance reasons, compile my scientific code with gcc. In order to understand this problem better, I have created a minimal test:
// FILE print.cxx
#include <string>
#include <iostream>
void print_message(const std::string& message)
{
std::cout << message << std::endl;
}
// FILE test.cxx
#include <string>
void print_message(const std::string&);
int main()
{
std::string message = "Hello World!";
print_message(message);
return 0;
}
This code I compile with:
// SCRIPT compile.sh
clang++ -stdlib=libstdc++ -c print.cxx
g++ test.cxx print.o
The example that I have added works, but is it possible to make it work with libraries that are compiled without the -stdlib=libstdc++ flag and instead use the libc++?
I'm just trying to get my c++ code to output properly in terminal on my mac, but it doesn't show anything. I'm using xcode as a text editor, saving the file as Code.cpp, and then typing g++ Code.cpp into terminal. Before it was showing errors when my code had bugs, but now that it runs correctly it doesn't show any output. Any thoughts? Here's my code:
#include <iostream>
using namespace std;
int main() {
cout << "Hello World" << endl;
return 0;
}
Here's what I put into terminal, and it just skips down to the next line without the "Hello World" output.
jspencer$ g++ Code.cpp
jspencer$
Thanks in advance for the help!!
g++ is a compiler. It turns your source code into an executable program, but doesn't run it.
You must run the program yourself. The default name of the program generated by g++ is a.out (for historical reasons), so you would run it as
$ ./a.out
If you want to choose a different name for your program, you use the -o option:
$ g++ Code.cpp -o myProgram
$ ./myProgram
But here's how I would write your program:
#include <iostream>
int main() {
std::cout << "Hello World\n";
return 0;
}
See here and here for some reasons.
I am trying to use XCppRefl lib to achieve reflections in c++. http://www.extreme.indiana.edu/reflcpp/. I could successfully install this library in linux and run the tests given with the source code of the library.
Here is the code that I have written --
#include <iostream>
using namespace std;
#include <reflcpp/ClassType_tmpl.hpp>
#include <reflcpp/BoundClassType_tmpl.hpp>
#include <reflcpp/Exceptions.hpp>
using namespace reflcpp;
#include "Complex.h"
int main()
{
//ClassType ct = ClassType::getClass( string("Complex") );
////PtrHolder_smptr_t obj = ct.createInstance();
//assert(ct.name() == "B");
Complex x;
int ret;
Complex a;
ClassType c = ClassType::getClass( string("Complex") );
//cout<<"name :: "<<c.name()<<endl;
}
It seems to compile just fine --
$ g++ -g -I /usr/local/include/reflcpp-0.2/ -L /usr/local/include/reflcpp-0.2/ -lreflcpp main.cpp
However when I execute the executable (a.out), I get a core-dump
a.out: Type.cpp:87: static const reflcpp::Type_body* reflcpp::Type_body::getType(const std::string&): Assertion `s_class_name_map' failed.
Aborted (core dumped)
Does anyone has used this lib before? Please help.
you have to link your main.o to libreflcpp.a . after compiling use this:
g++ -p -pg -o"project_name" ./A.o ./A_reflection.o ./main.o /usr/local/lib/libreflcpp.a