Mega Code Archive
Index a pointer as if it were an array
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/*
C#: The Complete Reference
by Herbert Schildt
Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/
// Index a pointer as if it were an array.
using System;
public class PtrIndexDemo {
unsafe public static void Main() {
int[] nums = new int[10];
// index pointer
Console.WriteLine("Index pointer like array.");
fixed (int* p = nums) {
for(int i=0; i < 10; i++)
p[i] = i; // index pointer like array
for(int i=0; i < 10; i++)
Console.WriteLine("p[{0}]: {1} ", i, p[i]);
}
// use pointer arithmetic
Console.WriteLine("\nUse pointer arithmetic.");
fixed (int* p = nums) {
for(int i=0; i < 10; i++)
*(p+i) = i; // use pointer arithmetic
for(int i=0; i < 10; i++)
Console.WriteLine("*(p+{0}): {1} ", i, *(p+i));
}
}
}
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