dmc (digital mars compiler)

Does anybody use dmc for c++? I have been using it for several years, ever since I started programming with regular C and it has worked great. DMC claims to support c++ but I just started learning c++ today and trying some things out and I am running into some problems.

Code:

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#include <iostream>

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gives an error.

Code:

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#include <iostream.h>

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This works. It's kind of annoying, but I'm willing to live with that.

Code:

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using namespace std;

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Error: undefined identifier 'std'

using the -A (conformity to standard C/C++) switch fixes this for some reason, I don't know why.

Code:

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std::string my_string;

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Error: 'string' is not a member of namespace 'std'

If I am doing something wrong (I have installed stlport and I use the -cpp switch although it automatically compiles in cpp mode if the filename extension is .cpp or .c++), or if there is an easy way to fix this I would like to know. Otherwise can anybody recommend a good command line C++ compiler for windows?

Thanks
-nb

You need to include <string>. Not that neither <cstring> or <string.h> are valid replacements for <string> if it cannot be found by your compiler. They are C stuff, not the C++ std::string.

I would start looking into the version of the compiler and libraries you are using - and see if there are any upgrades available.

gg

Thanks guys. I fixed it. DMC, despite having full c++ support requires you to download the STL libraries, which I did but apparently screwed something up the first time.

I have no experience with the DMC compiler, but I would say that either a gcc-based compiler & environment [e.g. gcc-mingw, Dev-cpp, Code::Blocks] or a Microsoft Visual Studio setup would be a better choice. The gcc compilers are REALLY good with usually good warnings and compliance to the relevant standards, Visual studio has a REALLY GOOD integrated editor, debugger and other tools - it's VERY slick.

Both products are widely used by members here.

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Mats

Thanks mats. I already have Visual C++ (the free one) installed, but I don't use it because I don't want to have to deal with "projects" for every 30 line test program that I run. C++ in dmc has been working very well for me since I fixed it, but if it is possible to compile in command line without creating a project, I would still consider using VC.

You can use Visual Studios compiler for command line compiles - no problem at all. You'll need to set the path to the correct directory for "cl.exe" [there's a "vcvars32.bat" that will do all the necessary setup for that, or you can copy the actions of vcvars32.bat into your system environment if you like].

That's one of the methods I use for "small test apps" - the other one is to have a "scratch" project, where I just replace the content of the single file in the project.

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Mats

Quote:

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Originally Posted by matsp

That's one of the methods I use for "small test apps" - the other one is to have a "scratch" project, where I just replace the content of the single file in the project.

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Mats

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I tend to do the same as matsp.
Create one project and just replace the contents with something else when you want to mess with it (or just comment out the old stuff and add new).
I do really recommend Visual Studio since it's just not a compiler, but an IDE and a debugger too (and it's slicker than dev-cpp to boot).