## args: double
## ret: double
## includes: math.h
0.0
-0.0
0.001
-0.001
0.5
-0.5
0.999
-0.999
1.0
-1.0
1.001
-1.001
123.5
-123.5
12345.1
-1000000.1
1e15
-1e30
1e200