error in systemc.h 118:16 error std::gets is not declared using std::gets

[mohitnegi]

hi ,

I have updated my gcc compiler to 4.9 version . now when I compile my system C model

with g++14 compiler option enabled ,it is giving this error in systemC header file

systemc.h 118:16 error std::gets is not declared using std::gets

 

I was not getting this error earlier . I tried building my systemC library with ./configure CXX=g++-4.9

but the same issue comes up ..

can anyone help in this ??

[Stephan Gerth]

std::fgets was deprecated AFAIR. You can comment this line actually at the moment. An official fix will be probably available with the next release.

[apfitch]

Hi Stephan,

I believe std::gets was deprecated in c++11, removed in c++14. But std::fgets is still valid.

 

regards

Alan

[Stephan Gerth]

You're right, typo on my side.

[mohitnegi]

hi Stephan/Alan,

 

so guys any work around for using c++14 with systemC without " error std::gets is not declared using std::gets" .

 

Thanks

[Roman Popov]

Yes, you can fix SystemC source code. Just comment it out in SystemC header.

[daveW]

FYI,  I had errors when running "gmake check" as part of my build/install of systemc-2.3.1a.  I modified './src/systemc.h' line 120 from "using std::gets" to "using std::fgets".  The "gmake check" did complete execution after I made this change.  Although other warnings were thrown.  I am using gcc 4.8.5 that has g++ version 6.2.1 20160826  (openSUSE Leap 42.2 x86_64).

[AmeyaVS]

@daveW you can tryout the SystemC 2.3.2 draft release which fixes most of the issues while building under C++11/C++14 compilers.

Have a look here:

Regards,

Ameya Vikram Singh

[benamar]

On 6/16/2016 at 5:51 PM, Roman Popov said:

Yes, you can fix SystemC source code. Just comment it out in SystemC header.t

 

thank you very much, i have the same problem ,it was solved

[benamar]

On 6/16/2016 at 5:51 PM, Roman Popov said:

Yes, you can fix SystemC source code. Just comment it out in SystemC header.t

 

thank you very much, i have the same problem ,it was solved

[David Black]

Observation: gets() is now considered forbidden in C since it is the cause of many hack attacks to create buffer overflow. get_s is recommended because it puts an upper limit on the number of acceptable characters. Although C++ std::string can handle large strings, it could still be an issue.

I am not saying you should never use it, but please be aware. I realize our SystemC activities are usually confined to safe internal use only situations, but I can forsee examples on the open web that might lead to an issue.

[Note: I teach C/C++ security courses in addition to my SystemC activities..]

[Philipp A Hartmann]

On 3/1/2017 at 6:19 PM, AmeyaVS said:

@daveW you can tryout the SystemC 2.3.2 draft release which fixes most of the issues while building under C++11/C++14 compilers.

Even better: Use the latest stable SystemC 2.3.3, which fixes several issues in 2.3.2.