undefined reference to `std::ios_base::Init::Init()'

Question

I write this code to read 3 files, TM is the size of square matrix, LER the No. of rows of an array and from last value define a non-square matrix of (ler/2)*2

Then... the code read a file with some relations, all are numbers and are assign to C[ler].

Then ... C[ler] is assigned to B[ler/2][2].

Those coordinates, per row, in B[ler/2][2] are assign to a and b.

a and b are the row and the column of the matrix A[tm][tm] where to add 1.

My code crashes and I don't see what the error is.

When I try to compile it, the compiler gcc -g -o MatSim MatSim.cpp prompted:

/usr/include/c++/4.6/iostream:75: undefined reference to `std::ios_base::Init::Init()'
/usr/include/c++/4.6/iostream:75: undefined reference to `std::ios_base::Init::~Init()'
collect2: ld returned 1 exit status

Also, when I try to compile it, the compiler f77 -o MatSim MatSim.cpp prompted:

/tmp/cc6ewlkf.o: In function `__static_initialization_and_destruction_0(int, int)':
MatSim.cpp:(.text+0x17ad4a): undefined reference to `std::ios_base::Init::Init()'
MatSim.cpp:(.text+0x17ad4f): undefined reference to `std::ios_base::Init::~Init()'
collect2: ld returned 1 exit status

Solution

The main problem was a library problem, Compile your code using:

 g++ -g -o MatSim MatSim.cpp -lstdc

Still not working? Install libraries:

sudo apt-get install g++-multilib

Does the compiler give an error? Are you sure you are correct when saying "the compiler gave an exit status of 1" and not the program gave an exit status of 1? — Celeritas
– Celeritas, Commented Jun 5, 2012 at 23:24
Celeritas, yes, this is what I receive right after I execute any of the compilers [gcc o f77] — Another.Chemist
– Another.Chemist, Commented Jun 5, 2012 at 23:27
Thanks Jonathan Leffler!!!! you and Reinier have enlightment my code and now I can really go forward!!!! — Another.Chemist
– Another.Chemist, Commented Jun 6, 2012 at 2:48
I had a similar issue using clang, it turns out adding the -lstdc++ switch works for this as well. — Chezzwizz
– Chezzwizz, Commented Dec 20, 2023 at 20:04

Baum mit Augen · Accepted Answer · 2018-11-07 19:58:50Z

221

You can resolve this in several ways:

Use g++ in stead of gcc: g++ -g -o MatSim MatSim.cpp
Add -lstdc++: gcc -g -o MatSim MatSim.cpp -lstdc++
Replace <string.h> by <string>

This is a linker problem, not a compiler issue. The same problem is covered in the question iostream linker error – it explains what is going on.

edited Nov 7, 2018 at 19:58

Baum mit Augen♦

50.4k25 gold badges153 silver badges187 bronze badges

answered Jun 6, 2012 at 1:46

Reinier Torenbeek

17.5k8 gold badges50 silver badges71 bronze badges

Sign up to request clarification or add additional context in comments.

5 Comments

Another.Chemist Over a year ago

Thanks Reiner... I tried your suggestion and I get: g++ -g -o MatSim MatSim.cpp -lstdc /usr/bin/ld: cannot find -lstdc collect2: ld returned 1 exit status

Reinier Torenbeek Over a year ago

If you go with the extra library option, then you should use -lstdc++, not -lstdc. But if you use g++, then it is not necessary to add that library.

Another.Chemist Over a year ago

Thanks Reinier!!!! you and Jonathan Leffler have enlightment my code and now I can really go forward!!!!

Zac Over a year ago

I think this is an human error: it is not right to compile c++ code with gcc (instead of g++) (as I was doing wrong myself and googled here :)

CleanCoder Over a year ago

I tried to ndk-build to jni directory. I think your answer for one .cpp not for the directory. Do you have solution?

Arjun Shukla · Accepted Answer · 2015-06-30 14:57:09Z

7

Most of these linker errors occur because of missing libraries.

I added the libstdc++.6.dylib in my Project->Targets->Build Phases-> Link Binary With Libraries.

That solved it for me on Xcode 6.3.2 for iOS 8.3

Cheers!

answered Jun 30, 2015 at 14:57

Arjun Shukla

3377 silver badges10 bronze badges

1 Comment

Eduardo Reis Over a year ago

Thanks for sharing this, man. You just solved my problem. I was trying to compiling a target for unity test in my project using gtest-1.7.0 Framework and Xcode Version 6.3.2.

Deepak Sharma · Accepted Answer · 2021-05-14 12:07:01Z

3

g++ is equivalent to gcc -xc++ -lstdc++ -shared-libgcc

I was getting a similar error while using sizeof() method. By using g++ or above tags with gcc, the code got compiled.

answered May 14, 2021 at 12:07

Deepak Sharma

6529 silver badges12 bronze badges

Collectives™ on Stack Overflow

undefined reference to `std::ios_base::Init::Init()'

3 Answers 3

5 Comments

1 Comment

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

5 Comments

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related