Log is listed as follows.
```
Running 1 test case...
test/algorithms/overlay/get_distance_measure.cpp(60): error: in "test_main_caller( argc_ argv )": Case: issue_1183_3 ctype: e tr_side: -1 dm_side: 1
test/algorithms/overlay/get_distance_measure.cpp(60): error: in "test_main_caller( argc_ argv )": Case: issue_1183_4 ctype: e tr_side: -1 dm_side: 1
test/algorithms/overlay/get_distance_measure.cpp(60): error: in "test_main_caller( argc_ argv )": Case: issue_1183_5 ctype: e tr_side: -1 dm_side: 0
test/algorithms/overlay/get_distance_measure.cpp(60): error: in "test_main_caller( argc_ argv )": Case: issue_1183_6 ctype: e tr_side: -1 dm_side: 0
test/algorithms/overlay/get_distance_measure.cpp(60): error: in "test_main_caller( argc_ argv )": Case: issue_1183_7 ctype: e tr_side: -1 dm_side: 0
test/algorithms/overlay/get_distance_measure.cpp(60): error: in "test_main_caller( argc_ argv )": Case: issue_1183_8 ctype: e tr_side: -1 dm_side: 0
test/algorithms/overlay/get_distance_measure.cpp(60): error: in "test_main_caller( argc_ argv )": Case: issue_1183_9 ctype: e tr_side: -1 dm_side: 0
test/algorithms/overlay/get_distance_measure.cpp(60): error: in "test_main_caller( argc_ argv )": Case: issue_1183_10 ctype: e tr_side: -1 dm_side: 0
test/algorithms/overlay/get_distance_measure.cpp(60): error: in "test_main_caller( argc_ argv )": Case: issue_1183_11 ctype: e tr_side: -1 dm_side: 0
test/algorithms/overlay/get_distance_measure.cpp(60): error: in "test_main_caller( argc_ argv )": Case: issue_1183_12 ctype: e tr_side: -1 dm_side: 0
*** 10 failures are detected in the test module "Test Program"
```
The reason is that in MSVC the long double type is identical to the double type. We should treat 64-bit long double as double. Modification to float is made for consistency.
* the function (in namespace detail) is split and two parts are renamed on purpose, because functionality is changed
* tests are added
* intersection.cpp split into new file intersection_integer.cpp
* testing point count now if specified
