floor

uint8_t floor(uint8_t x)
int8 floor(int8 x)
int floor(int x)
float floor(float x)

Description
Returns the largest integer value not greater than x (round towards negative infinity).
For integer types the value is returned unchanged.
The return type matches the input type.

Parameter
- x - A numeric value (uint8_t, int8, int or float).

Returns
The floor of x, with the same type as the input.

Example
void main()
{
    float a = floor(3.9);   // a = 3.0
    float b = floor(-1.2);  // b = -2.0
    int   c = floor(5);     // c = 5
}