/*
   The Java example with Java Native Access(JNA) to call the if87 shared library

     https://github.com/java-native-access/jna
     
   Download JNA: https://repo1.maven.org/maven2/net/java/dev/jna/jna/5.13.0/jna-5.13.0.jar

    javac -cp jna.jar demo.java
    java -cp .;jna.jar demo
 */
import com.sun.jna.Native;
import com.sun.jna.Library;

interface if97 extends Library {

    if97 lib = (if97) Native.load("../target/release/if97", if97.class);

    public double pt(double p, double t, int o_id);

}

public class demo {

    public static void main(String[] args) {
        double p = 16.0;
        double t = 540.0;
        double h;
        h = if97.lib.pt(p, t, 4);
        System.out.printf("(p,t)->h: (%.1f %.1f) h: %.2f\n", p, t, h);
    }
}