You can make a difference in the Apple Support Community!
When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.
When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.
Developer Forums relocated!
Need help with Apple Developer tools and technologies? Want to share information with other developers and Apple engineers? Visit Developer Forums at Apple.
Need help with Apple Developer tools and technologies? Want to share information with other developers and Apple engineers? Visit Developer Forums at Apple.
How to solve the following issue:
I am running a c++ program on terminal. I got an error
"can't open output file for writing '/vector.ld_JehG5c', errno=30 for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)"
I run the same code on online compliers it works(run successfully).
please help me
While it is very rare, etresoft is wrong, he did not realize that this is a linker error not a user program error. Since vector.cpp is probably the name of a c++ standard library you should create a new project and name it and your program myvector or something like that.
Is this just a standard C++ application, or does it involve Cocoa libraries, or C++nn/C++2a standard code? There are extensive clang++ compiler switches available, including some that may be beneficial for a vector application:
[xcrun] clang++ --help
This will automatically use the standard c++ library libc++, but does not account for helping it find custom header, or library locations, or any other C++ code dependencies:
clang++ -Oz -o vector ./vector.cpp
What C++ libraries are available? Deliberately issue a bogus library name:
[xcrun] clang++ -Oz -o vector ./vector.app -std=cxx17
note: use 'c++11' for 'ISO C++ 2011 with amendments' standard
note: use 'gnu++11' for 'ISO C++ 2011 with amendments and GNU extensions' standard
note: use 'c++14' for 'ISO C++ 2014 with amendments' standard
note: use 'gnu++14' for 'ISO C++ 2014 with amendments and GNU extensions' standard
note: use 'c++17' for 'ISO C++ 2017 with amendments' standard
note: use 'gnu++17' for 'ISO C++ 2017 with amendments and GNU extensions' standard
note: use 'c++2a' for 'Working draft for ISO C++ 2020' standard
note: use 'gnu++2a' for 'Working draft for ISO C++ 2020 with GNU extensions' standard
If you are using the command-line tools, you can ignore the [xcrun] as that is used when only Xcode is installed.
this is a standard c++ application
my code is given below
#include<iostream>
using namespace std;
int main()
{
int i,j,k,t,n,max,min,max_in,min_in,ans,tag1,tag2,tag;
cin>>t;
for(k=0;k<t;k++)
{
cin>>n;
int arr[n];
for(j=0;j<n;j++)cin>>arr[j];
min=arr[0];max_in=0;min_in=0;
max=arr[0];
ans=0;
for(i=1;i<n;i++)
{
if(arr[i]-i>max-max_in)
{
max=arr[i];
max_in=i;
tag=arr[i]-min+i-min_in;
if(tag>ans)ans=tag;
}
if(arr[i]+i<min+min_in)
{
min=arr[i];
min_in=i;
tag=max-arr[i]+i-max_in;
if(tag>ans)ans=tag;
}
else
{
tag1=max-arr[i]+i-max_in;
tag2=arr[i]-min+i-min_in;
if(tag1>tag2)
{if(tag1>ans)ans=tag1;}
else if(tag2>ans)ans=tag2;
}
}
cout<<ans<<endl;
}
return 0;
}
This code compiles and loads cleanly with the current command line tools for Xcode 11 on Mojave 10.14.6 (18G3020) and Catalina 10.15.3 (19D76). Makes no difference whether the source filename is vector.cpp, or nvector.cpp.
clang++ -Oz -o vector ./vector.cpp
Thanku, It worked.
I have one other question :-
I have installed a g++ compiler using home brew on terminal.
I want to delete that compiler(as it was slow maybe) but I don't know what is the location of that file .
Can you please tell me how delete that g++ compiler .
brew help uninstall
brew uninstall --force --ignore-dependencies gcc
brew cleanup
Homebrew probably put the gcc bits in several locations in /usr/local, and in particular /usr/local/Cellar/gcc. The above should automate its removal and cleanup.
It is very unlike that your data file is at /. Remove the slash character and make sure your data file is in the current working directory.
How to do that.
You do not want the compiled (-o) name to be the same as an existing directory name in the same location. That will fail with the cannot open output file for writing error.
Then please tell me how to run a C++ program on terminal .
File name is vector.cpp
It is in the directory :-/Users/adarsh/Desktop/hackerearth/
thanks it helped
Error while running a c++ program on terminal.
