wrap()

Restricts a value to an interval [low, high) by wrapping it around.

Two alternative versions are provided:

Version	Equivalent to
`wrap(x, high)`	`wrap(x, 0.0, high)`
`wrap01(x)`	`wrap(x, 0.0, 1.0)`

Example

Ramp LED up and then back to zero once every 10 second:

#include <Plaquette.h>

AnalogOut led(9);

void begin() {
}

void step() {
   wrap(seconds(), 10.0) >> led;
}

float pq::wrap(double x, double low, double high)

Restricts value to the interval [low, high) by wrapping it around.

Parameters:

Returns:

the value wrapped around [low, high) or [high, low) if high < low

float pq::wrap(double x, double high)

Restricts value to the interval [0, high) by wrapping it around.

Parameters:

Returns:

the value wrapped around [0, high) or [high, 0) if high is negative

float pq::wrap01(double x)

Restricts value to the interval [0, 1) by wrapping it around.