Mercurial > projects > ldc
view tests/mini/ptrarith.d @ 657:c42173b3557b
Removed some checks for abstract llvm types that were too strict, a 'opaque* null' is a valid initializer... when structs in D can be just a forward reference.
author | Tomas Lindquist Olsen <tomas.l.olsen@gmail.com> |
---|---|
date | Mon, 06 Oct 2008 14:37:00 +0200 |
parents | 1bb99290e03a |
children |
line wrap: on
line source
extern(C) int printf(char*, ...); void main() { printf("Pointer arithmetic test\n"); int* p; printf("0x%x\n", p); assert(p++ is null); assert(cast(size_t)p == 4); printf("0x%x\n", p); p--; assert(p is null); printf("0x%x\n", p); int d = 4; p+=d; printf("0x%x\n", p); assert(cast(size_t)p == 16); d = 2; p+=d; printf("0x%x\n", p); assert(cast(size_t)p == 0x18); d = 6; p-=d; printf("0x%x\n", p); assert(p is null); printf(" SUCCESS\n"); } void fill_byte_array(ubyte* a, size_t n, ubyte v) { auto p = a; auto end = a+n; while (p !is end) *p++ = v; }