Can't compile C++ code, unknown type name 'namespace' in std library?

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Joel Wigton

• December 15, 2016 20:54

I am trying to evaluate CrossWorks for an STM32 application (STM32L152RE if it matters).

My working code was exported from the mbed environment using their export for GccARM toolchain option. I then started from a blank template project for STM32 and then manually added in the .c source files. I modified the preprocessor options to point to my necessary includes.

When I try to build, I get the error: "unknown type name 'namespace'", which is in a Rowley Crossworks library file, <stddef>

namespace std
{
using ::ptrdiff_t;
using ::size_t;
}

Googling around, it seems like this user had the same issue. http://stackoverflow.com/questions/13602249/how-to-fix-error-unknown-type-name-namespace

And the answer for him was that he was using a C compiler instead of C++.

From CrossWorks website it sounds like the gcc compiler supports both C/C++. I don't see any project options to choose another compiler (they mentioned g++ instead of gcc). I have just gcc and Clang options, and both die on the same error.

What do I need to do to compile C++ code? This code compiles in the mbed environment.  Or is my error something else (and a poorly worded error message)?

Thanks,
Joel

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  Michael Johnson

  • December 16, 2016 08:17

  Change the File Type property on the file node in the project explorer to "C++".

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  Joel Wigton

  • December 16, 2016 16:51

  Thanks, that works.  I'm not sure when I exported this from mbed it changed the file ending from .cpp to .c.

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