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-rw-r--r--reference/C/EXAMPLES/pointer3_func.c29
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diff --git a/reference/C/EXAMPLES/pointer3_func.c b/reference/C/EXAMPLES/pointer3_func.c
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+/*
+ * Purpose: Program to demonstrate passing apointer to a character
+ * string to a function.
+ * Author: M J Leslie.
+ * Date: 21-Apr-94
+ */
+
+int function1(char * array);
+
+main()
+{
+ char array1[10]="987654321"; /* one less so the \0 will fit */
+
+ function1(array1); /* call function */
+
+ printf("%s\n", array1); /* O/P the altered array. '5' will
+ * have been changed to 'x' */
+}
+
+/************************************************************************/
+
+function1(char * array)
+{
+ printf("%s\n", array); /* printf expects a pointer. */
+
+ array +=4; /* Modify the pointer. */
+ *array = 'x'; /* Modify the data pointed to
+ * by 'array' */
+}