## args: float
## ret: float
## includes: math.h
0.0f
-0.0f
0.001f
-0.001f
0.5f
-0.5f
0.999f
-0.999f
1.0f
-1.0f
1.001f
-1.001f
123.5f
-123.5f
12345.1f
-1000000.5f
1e15f
-1e30f