ceil

uint8_t ceil(uint8_t x)
int8 ceil(int8 x)
int ceil(int x)
float ceil(float x)

Description
Returns the smallest integer value not less than x (round towards positive 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 ceiling of x, with the same type as the input.

Example
void main()
{
    float a = ceil(3.1);    // a = 4.0
    float b = ceil(-1.8);   // b = -1.0
    int   c = ceil(5);      // c = 5
}