../libs/safe_numerics/test/test_auto.cpp:59:25: warning: variable 'r1' is uninitialized when passed as a const reference argument here [-Wuninitialized-const-reference]
../libs/safe_numerics/test/test_auto.cpp:65:25: warning: variable 'r2' is uninitialized when passed as a const reference argument here [-Wuninitialized-const-reference]
../libs/safe_numerics/test/test_auto.cpp:76:25: warning: variable 'r1' is uninitialized when passed as a const reference argument here [-Wuninitialized-const-reference]
3 warnings generated.