Re: [Qemu-devel] Re: [PATCH] win32: use PRId64 instead of %lld

[Stefan Weil]

Michael S. Tsirkin schrieb:
> On Sun, Jan 24, 2010 at 09:23:41PM +0000, Herve Poussineau wrote:
>> Replace %lld occurrences by PRId64.
>
> This is wrong.
> long long values should be printed with %lld.
> size_t - with %zd. PRId64 is for int64_t.
>

size_t => %zu, ssize_t => %zd might be better.

And none of them works on win32, so using them
there can result in a crash:

    size_t st = 4711;
    fprintf(stderr, "st=%zu, %s\n", st, "test");

printf functions on win32 don't know %z.
They run

    fprintf(stderr, "st=zu, %s\n", st, "test");

which results in an memory access fault when printf
wants to read the memory at address 0x4711.

Regards,
Stefan Weil