Mercurial > projects > ldc

comparison test/ptrarith.d @ 1:c53b6e3fe49a trunk

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
[svn r5] Initial commit. Most things are very rough.
author lindquist
date Sat, 01 Sep 2007 21:43:27 +0200
parents
children d9d5d59873d8
comparison
equal deleted inserted replaced
0:a9e71648e74d 1:c53b6e3fe49a
1 void main()
2 {
3 printf("Pointer arithmetic test\n");
4 int* p;
5 printf("0x%x\n", p);
6 assert(p++ is null);
7 assert(cast(size_t)p == 4);
8 printf("0x%x\n", p);
9 p--;
10 assert(p is null);
11 printf("0x%x\n", p);
12 int d = 4;
13 p+=d;
14 printf("0x%x\n", p);
15 assert(cast(size_t)p == 16);
16 d = 2;
17 p+=d;
18 printf("0x%x\n", p);
19 assert(cast(size_t)p == 0x18);
20 d = 6;
21 p-=d;
22 printf("0x%x\n", p);
23 assert(p is null);
24 printf(" SUCCESS\n");
25 }
26
27 void fill_byte_array(ubyte* a, size_t n, ubyte v)
28 {
29 auto p = a;
30 auto end = a+n;
31 while (p !is end)
32 *p++ = v;
33 }