view tests/mini/ptrarith.d @ 1605:1d5721f9ae18

[WIP] Merge DMD r251: bugzilla 111 (appending a dchar to a char[]) This patch needs some work in the code generation, because of the runtime changes (functions "_d_arrayappendcd" and "_d_arrayappendwd" are added). This doesn't affect existing code though, it just makes with patch a little useless, because something like this: char [] s; s ~= '\u6211'; That failed to compile with a nice error message previously to this change, now fails with and ugly error message (a failed assertion). Apparently there is a regression introduced by this patch too, when compiling Dil I get this assertion message: ldc: /home/luca/tesis/ldc/gen/statements.cpp:132: virtual void ReturnStatement::toIR(IRState*): Assertion `p->topfunc()->getReturnType() == llvm::Type::getVoidTy(gIR->context())' failed. 0 ldc 0x08a91628 Thank god we have bisecting capabilities in VCSs now ;) --- dmd/expression.c | 47 +++++++++++++++++++++++++++++++++++++++++------ 1 files changed, 41 insertions(+), 6 deletions(-)
author Leandro Lucarella <llucax@gmail.com>
date Wed, 06 Jan 2010 15:18:19 -0300
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;
}