ARM-NN for Caffe SDK : build error in Ubuntu 18.04 LTS about armnn HOT 4 CLOSED

Hi @KimonoYan,

The cmake step looks fine to me, although I see you are using a newer version of cmake than I do (we use cmake 3.7.2).
Maybe more recent versions of cmake are pickier these days and report the syntax of GetDataTypeName in TypesUtils.hpp as invalid (by missing a proper return statement at the end).
Can you try changing GetDataTypeName as follows by adding a return statement at the end of it and see if it builds?

constexpr const char* GetDataTypeName(DataType dataType)
{
    switch (dataType)
    {
        case DataType::Float32:   return "Float32";
        case DataType::QuantisedAsymm8: return "Unsigned8";
        case DataType::Signed32:  return "Signed32";
        default:                  return "Unknown";
    }
    return "Unknown"; // <-- The change.
}

If the change above fixes your issue we may need to consider integrating it in future releases.
Let me know if that helped.

Regards

from armnn.

First of all, let me express my thanks for your reply.

I have made the above modifications according to your suggestion, but the problem has not improved.
Besides, some of the other engineering documents I refer to on the web are using cmake 3.9.1 ,no errors were encountered in the build stage.

Here's all the print information：
In file included from /home/kimono/armNN_SDK/armnn-18.05/include/armnn/IRuntime.hpp:12:0,
from /home/kimono/armNN_SDK/armnn-18.05/src/armnn/backends/ClWorkloadFactory.hpp:9,
from /home/kimono/armNN_SDK/armnn-18.05/src/armnn/backends/ClWorkloadFactory.cpp:5:
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp: In function ‘constexpr const char* armnn::GetStatusAsCString(armnn::Status)’:
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp:26:1: error: body of constexpr function ‘constexpr const char* armnn::GetStatusAsCString(armnn::Status)’ not a return-statement
}
^
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp: In function ‘constexpr const char* armnn::GetComputeDeviceAsCString(armnn::Compute)’:
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp:38:1: error: body of constexpr function ‘constexpr const char* armnn::GetComputeDeviceAsCString(armnn::Compute)’ not a return-statement
}
^
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp: In function ‘constexpr const char* armnn::GetActivationFunctionAsCString(armnn::ActivationFunction)’:
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp:57:1: error: body of constexpr function ‘constexpr const char* armnn::GetActivationFunctionAsCString(armnn::ActivationFunction)’ not a return-statement
}
^
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp: In function ‘constexpr const char* armnn::GetPoolingAlgorithmAsCString(armnn::PoolingAlgorithm)’:
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp:69:1: error: body of constexpr function ‘constexpr const char* armnn::GetPoolingAlgorithmAsCString(armnn::PoolingAlgorithm)’ not a return-statement
}
^
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp: In function ‘constexpr const char* armnn::GetOutputShapeRoundingAsCString(armnn::OutputShapeRounding)’:
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp:81:1: error: body of constexpr function ‘constexpr const char* armnn::GetOutputShapeRoundingAsCString(armnn::OutputShapeRounding)’ not a return-statement
}
^
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp: In function ‘constexpr const char* armnn::GetPaddingMethodAsCString(armnn::PaddingMethod)’:
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp:93:1: error: body of constexpr function ‘constexpr const char* armnn::GetPaddingMethodAsCString(armnn::PaddingMethod)’ not a return-statement
}
^
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp: In function ‘constexpr unsigned int armnn::GetDataTypeSize(armnn::DataType)’:
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp:105:1: error: body of constexpr function ‘constexpr unsigned int armnn::GetDataTypeSize(armnn::DataType)’ not a return-statement
}
^
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp: In instantiation of ‘constexpr bool armnn::StrEqual(const char*, const char (&)[N]) [with int N = 7]’:
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp:120:31: required from here
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp:116:1: error: body of constexpr function ‘constexpr bool armnn::StrEqual(const char*, const char (&)[N]) [with int N = 7]’ not a return-statement
}
^
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp: In function ‘constexpr armnn::Compute armnn::ParseComputeDevice(const char*)’:
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp:136:1: error: body of constexpr function ‘constexpr armnn::Compute armnn::ParseComputeDevice(const char*)’ not a return-statement
}
^
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp: In function ‘constexpr const char* armnn::GetDataTypeName(armnn::DataType)’:
/home/kimono/armNN_SDK/armnn-18.05/include/armnn/TypesUtils.hpp:148:1: error: body of constexpr function ‘constexpr const char* armnn::GetDataTypeName(armnn::DataType)’ not a return-statement
}
^
CMakeFiles/armnn.dir/build.make:62: recipe for target 'CMakeFiles/armnn.dir/src/armnn/backends/ClWorkloadFactory.cpp.o' failed
make[2]: *** [CMakeFiles/armnn.dir/src/armnn/backends/ClWorkloadFactory.cpp.o] Error 1
CMakeFiles/Makefile2:174: recipe for target 'CMakeFiles/armnn.dir/all' failed
make[1]: *** [CMakeFiles/armnn.dir/all] Error 2
Makefile:129: recipe for target 'all' failed
make: *** [all] Error 2

from armnn.

Ignore my previous suggestion, your problem seems to be that your compiler doesn't support C++14 properly.
Specifically, constexpr is available since gcc 5, have a look at the standard here: https://gcc.gnu.org/projects/cxx-status.html#cxx14 (at "Relaxing requirements on constexpr functions").
I would suggest that you update the compiler and retry.

from armnn.

Hi @KimonoYan,

I hope your issue is resolved now. Please open a new one if you are still having problems.

Thanks,
Surabhi

from armnn.