view test/ptrarith.d @ 131:5825d48b27d1 trunk

[svn r135] * Merged DMD 1.025 * * Fixed a minor linking order mishap * * Added an command line option -annotate * * Fixed some problems with running optimizations * * Added std.stdio and dependencies to lphobos (still not 100% working, but compiles and links) * * Fixed problems with passing aggregate types to variadic functions * * Added initial code towards full GC support, currently based on malloc and friends, not all the runtime calls the GC yet for memory * * Fixed problems with resolving nested function context pointers for some heavily nested cases * * Redid function argument passing + other minor code cleanups, still lots to do on this end... *
author lindquist
date Fri, 04 Jan 2008 01:38:42 +0100
parents c53b6e3fe49a
children d9d5d59873d8
line wrap: on
line source

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;
}