So here's my problem. I have downloaded mingw g++ by using msys according to the official vs code website
Here are my files:
Now, when I try to build I get this error:
> Executing task: g++ -std=c++14 -g -o myfile.exe myfile.cpp <
cc1plus.exe: fatal error: myfile.cpp: No such file or directory
compilation terminated.
The terminal process "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -Command g++ -std=c++14 -g -o myfile.exe myfile.cpp" terminated with exit code: 1.
And if I do have a .exe file:
edit: I also started getting errors with
#include <iostream>
I would make this a comment if I could. What is the name of the file where you have written #include <iostream>?* I think if you change the name of that file to "myfile.cpp", you might stop getting that error. You will probably get a different error saying that "main() cannot be found" or something like that, but that's an improvement from your current spot.
*I see it's O3.cpp. Try changing that to myfile.cpp.
Related
I get the error "gcc.exe: fatal error: cannot execute 'cc1plus'" when I want to compile any program in C++. I didn't installed the compiler Mingw-w64, downloaded the zip from winlibs.com and I copied it to "C:". Then I added to the environment variable Path.
I tried to move the library cc1plus.exe.o to the lib folder of Mingw, and used the commands gcc test.cpp -o test.exe and gcc.exe test.cpp -o text.exe.
The OS is Windows.
Thank you.
I’m a newbie to C++ and Linux. There is this code I’m playing with that requires me to install the HElib (Homomorphic encryption library and other libraries - GMP, NTL) which I did. I want to compile the code (main.cpp) that has a header file (FHE.h) in HElib. My problem is how can I link FHE.h (in HElib folder) and main.cpp (in another folder) together so that I can compile them. I have tried some commands
g++ -I/Home/HElib/src/FHE.h main.cpp -o main
Error message
main.cpp:1:17: fatal error: FHE.h: No such file or directory
compilation terminated.
Another command line
g++ -I/Home/HElib/Src/FHE.h -I/Home/SimpleFHESum-master/SimpleFHESum-master/main.cpp -o main]
Error Message
g++: fatal error: no input files
compilation terminated.
What's wrong and how can I fix this?
The -I flag adds the following directory to the include path of the compiler. This enables you to write e.g. #include "FHE.h" even though that file is not located in the same folder as the source file you're trying to compile.
Have you tried just removing the 'FHE.h' part from your -I directive?
g++ -I/Home/HElib/src ...
I'm new to C++, I am trying to compile gtest with Cygwin. I have installed the GNU g++ compiler which works fine. I ran the following command on Cygwin:
g++ -I /cygdrive/c/devel/cpp/gtest/include -I /cygdrive/c/devel/cpp/gtest -pthread -c /cygdrive/c/devel/cpp/gtest/googletest/src/gtest-all.cc
/cygdrive/c/devel/cpp/gtest/googletest/src/gtest-all.cc:39:25: fatal error: gtest/gtest.h: No such file or directory
compilation terminated.
All the files seem to be in place, however the error does not go, any ideas why?
It looks like you have provided space between -I and path.
There should not be any space between -I and corresponding path.
It should be like
g++ -I/cygdrive/c/devel/cpp/gtest/include -I/cygdrive/c/devel/cpp/gtes..
Check it.
I have a basic C++ program in Eclipse CDT:
#include <iostream>
using namespace std;
int main()
{
std::cout << "Hello World!";
}
However, when I try to build it, I get an Exec Format Error. Here is the output produced by the compiler
g++ -O0 -g3 -Wall -c -fmessage-length=0 -o hey.o "..\\hey.cpp"
g++: error: spawn: Exec format error
I am using MinGW Toolchain. I am on 64-bit Windows, and I think that may have something to do with it. Would anyone know how to get this program running?
Edit
Running the exact command in command prompt in the directory where my source file is works just fine, without throwing errors, but it still doesn't work in Eclipse
So, I have fixed this myself by installing the 64-bit version of MinGW (http://sourceforge.net/projects/mingw-w64/). It now compiles and builds noramlly
I used a sample code from mathworks website to integrate a MATLAB code with C/C++ by a link!
As you seen in the code, there is header file as:
#include "engine.h"
In Linux (Ubuntu), I ran:
g++ engdemo.cpp -o mycpp command to create an executable program, but the below fatal error occurred:
engdemo.cpp:14:20: fatal error: engine.h: No such file or directory, compilation terminated.
How can i solve this fatal error?
Look in
[matlabroot '/extern/include']
If you see engine.h there, just run
g++ -I../../include engdemo.cpp -o mycpp
(assuming you run from [matlabroot '/extern/examples/eng_mat/'])