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pybricks.tools: Fix crash when cross() args are wrong type. #377

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pybricks.tools: Fix crash when cross() args are wrong type. #377

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3 changes: 3 additions & 0 deletions pybricks/tools/pb_type_matrix.c
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Original file line number Diff line number Diff line change
Expand Up @@ -578,6 +578,9 @@ MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pb_geometry_vector_obj, 2, 3, pb_geometry_ve

// pybricks.tools.cross
static mp_obj_t pb_type_matrix_cross(mp_obj_t a_in, mp_obj_t b_in) {
if (!mp_obj_is_type(a_in, &pb_type_Matrix) || !mp_obj_is_type(b_in, &pb_type_Matrix)) {
mp_raise_TypeError(MP_ERROR_TEXT("arguments must be Matrix objects"));
}

// Get a and b vectors
pb_type_Matrix_obj_t *a = MP_OBJ_TO_PTR(a_in);
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