Mercurial > projects > ldc
view tests/mini/ptrarith.d @ 1215:08f87d8cd101
Fix some unittests for 64-bit asm. They were operating on int variables as if
they were longs.
This was causing asm1_1 to fail when compiled with -O3 because it was
overwriting the spilled value of callee-saved register %rbx, which the runtime
was using as a pointer value at the time.
author | Frits van Bommel <fvbommel wxs.nl> |
---|---|
date | Mon, 13 Apr 2009 17:42:36 +0200 |
parents | 1bb99290e03a |
children |
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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; }