mutating passed arrays

Author: ivanbrennan

prog.8.11.c

@@ -0,0 +1,25 @@
+#include <stdio.h>
+
+void multiplyBy2 (float array[], int n)
+{
+	int i;
+
+	for ( i = 0; i < n; ++i )
+		array[i] *= 2;
+}
+
+int main (void)
+{
+	float	floatVals[4] = { 1.2f, -3.7f, 6.2f, 8.55f };
+	int		i;
+	void	multiplyBy2 (float array[], int n);
+
+	multiplyBy2 (floatVals, 4);
+
+	for ( i = 0; i < 4; ++i )
+		printf ("%.2f   ", floatVals[i]);
+
+	printf ("\n");
+
+	return 0;
+}