value copied into formal parameter

Author: ivanbrennan

prog.8.7.c

@@ -0,0 +1,35 @@
+// Function to calculate the absolute value
+
+#include <stdio.h>
+
+float absoluteValue (float x)
+{
+	if ( x < 0 )
+		x = -x;
+
+	return x;
+}
+
+int main (void)
+{
+	float	f1 = -15.5, f2 = 20.0, f3 = -5.0;
+	int		i1 = -716;
+	float	result;
+
+	result = absoluteValue (f1);
+	printf ("result = %.2f\n", result);
+	printf ("f1 = %.2f\n", f1);
+
+	result = absoluteValue (f2) + absoluteValue (f3);
+	printf ("result = %.2f\n", result);
+
+	result = absoluteValue ( (float) i1 );
+	printf ("result = %.2f\n", result);
+
+	result = absoluteValue (i1);
+	printf ("result = %.2f\n", result);
+
+	printf ("%.2f\n", absoluteValue (-6.0) / 4 );
+
+	return 0;
+}