Building Taco failed

[ValouBambou]

Hi, I've tried to clone and build taco from the master branch (last commit is 2b8ece4 alias "Merge pull request #526 from zhang677/test-target") and get this compilation error.

Is this normal ? Should I ignore this error on a test file and still use the library ?

[  2%] Built target taco-gtest
[ 64%] Built target taco
[ 68%] Built target taco-tool
[ 68%] Built target tensor_times_vector
[ 71%] Building CXX object test/CMakeFiles/taco-test.dir/tests-windowing.cpp.o
[ 71%] Building CXX object test/CMakeFiles/taco-test.dir/tests-type.cpp.o
[ 71%] Building CXX object test/CMakeFiles/taco-test.dir/tests-tensor_types.cpp.o
[ 72%] Building CXX object test/CMakeFiles/taco-test.dir/tests-workspaces.cpp.o
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp: In instantiation of ‘void gtest_case_VectorTensorTest_::types<gtest_TypeParam_>::TestBody() [with gtest_TypeParam_ = unsigned char]’:
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:42:1:   required from here
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:48:30: error: narrowing conversion of ‘1.0e+0’ from ‘double’ to ‘unsigned char’ [-Wnarrowing]
   48 |   map<vector<int>,TypeParam> vals = {{{0}, 1.0}, {{2}, 2.0}};
      |                              ^~~~
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp: In instantiation of ‘void gtest_case_VectorTensorTest_::types<gtest_TypeParam_>::TestBody() [with gtest_TypeParam_ = long long int]’:
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:42:1:   required from here
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:48:30: error: narrowing conversion of ‘1.0e+0’ from ‘double’ to ‘long long int’ [-Wnarrowing]
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp: In instantiation of ‘void gtest_case_VectorTensorTest_::types<gtest_TypeParam_>::TestBody() [with gtest_TypeParam_ = long int]’:
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:42:1:   required from here
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:48:30: error: narrowing conversion of ‘1.0e+0’ from ‘double’ to ‘long int’ [-Wnarrowing]
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp: In instantiation of ‘void gtest_case_VectorTensorTest_::types<gtest_TypeParam_>::TestBody() [with gtest_TypeParam_ = int]’:
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:42:1:   required from here
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:48:30: error: narrowing conversion of ‘1.0e+0’ from ‘double’ to ‘int’ [-Wnarrowing]
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp: In instantiation of ‘void gtest_case_VectorTensorTest_::types<gtest_TypeParam_>::TestBody() [with gtest_TypeParam_ = short int]’:
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:42:1:   required from here
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:48:30: error: narrowing conversion of ‘1.0e+0’ from ‘double’ to ‘short int’ [-Wnarrowing]
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp: In instantiation of ‘void gtest_case_VectorTensorTest_::types<gtest_TypeParam_>::TestBody() [with gtest_TypeParam_ = long long unsigned int]’:
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:42:1:   required from here
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:48:30: error: narrowing conversion of ‘1.0e+0’ from ‘double’ to ‘long long unsigned int’ [-Wnarrowing]
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp: In instantiation of ‘void gtest_case_VectorTensorTest_::types<gtest_TypeParam_>::TestBody() [with gtest_TypeParam_ = signed char]’:
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:42:1:   required from here
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:48:30: error: narrowing conversion of ‘1.0e+0’ from ‘double’ to ‘signed char’ [-Wnarrowing]
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp: In instantiation of ‘void gtest_case_VectorTensorTest_::types<gtest_TypeParam_>::TestBody() [with gtest_TypeParam_ = long unsigned int]’:
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:42:1:   required from here
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:48:30: error: narrowing conversion of ‘1.0e+0’ from ‘double’ to ‘long unsigned int’ [-Wnarrowing]
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp: In instantiation of ‘void gtest_case_VectorTensorTest_::types<gtest_TypeParam_>::TestBody() [with gtest_TypeParam_ = unsigned int]’:
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:42:1:   required from here
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:48:30: error: narrowing conversion of ‘1.0e+0’ from ‘double’ to ‘unsigned int’ [-Wnarrowing]
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp: In instantiation of ‘void gtest_case_VectorTensorTest_::types<gtest_TypeParam_>::TestBody() [with gtest_TypeParam_ = short unsigned int]’:
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:42:1:   required from here
/home/val/Coding/dumbtests/tacorust/taco/test/tests-tensor_types.cpp:48:30: error: narrowing conversion of ‘1.0e+0’ from ‘double’ to ‘short unsigned int’ [-Wnarrowing]
make[2]: *** [test/CMakeFiles/taco-test.dir/build.make:496: test/CMakeFiles/taco-test.dir/tests-tensor_types.cpp.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [CMakeFiles/Makefile2:249: test/CMakeFiles/taco-test.dir/all] Error 2
make: *** [Makefile:146: all] Error 2

[SharmaRithik]

The problem is due to the conversion error, and static casting will resolve the error.