No, it's a compilation error (error: field expected), and I can't reproduce
it in a small program. The original file has hundreds of thousands of loc.
I'll investigate and send you a small self-contained example.
On Sun, Jul 21, 2019 at 9:20 PM Michael Matz <matz....@frakked.de> wrote:
> Hi,
>
> On Sun, 21 Jul 2019, Ivan Medoedov wrote:
>
> > Typo:
> >
> > Foo* foo = ALLOC_INIT(Foo, { .field = 123, .field2 = 456 });
>
> Next time, please be specific in your bug reports, it should contain a
> self-contained example of the problem you're seeing. With the info
> available I constructed the example below, and it works just fine.
>
> Then I realized that maybe you indeed mean GNU designated initializers and
> the runtime behaviour instead of not being able to compile something. I
> was able to generate a segfault at runtime when using the GNU form (i.e.
> '{ foo: val }'). That's now fixed in mob.
>
> % cat alloc-init.c
> typedef __SIZE_TYPE__ size_t;
> struct S {
> int a, b;
> };
>
> extern void * malloc(size_t);
> extern void * memcpy(void *, const void *, size_t);
> extern int printf(const char *, ...);
> void *memdup(const void *src, size_t sz);
> #define ALLOC_INIT(type, ...) \
> (type *)memdup((type[]){ __VA_ARGS__ }, sizeof(type))
>
> int main()
> {
> struct S *ps = ALLOC_INIT(struct S, {.a = 3, .b = 4});
> printf("%d %d\n", ps->a, ps->b);
> return 0;
> }
>
> void *memdup(const void *src, size_t sz) {
> void *mem = malloc(sz);
> return mem ? memcpy(mem, src, sz) : 0;
> }
>
> Ciao,
> Michael.
>
> >
> >
> > On Sun, Jul 21, 2019 at 7:56 PM Ivan Medoedov <ivan.medoe...@gmail.com>
> > wrote:
> > Indeed. Sorry, my bad.
> > Looks like the error is caused by __VA_ARGS__
> >
> > I'm using the following macro:
> >
> > #define ALLOC_INIT(type, ...) (type *)memdup((type[]){ __VA_ARGS__ },
> > sizeof(type))
> >
> >
> https://tia.mat.br/posts/2015/05/01/initializing_a_heap_allocated_structure
> > _in_c.html
> >
> > Foo* foo = ALLOC_INIT(Foo, { field: 123, field2: 456 });
> >
> > error: field expected
> >
> > This macro works fine with GCC and Clang.
> >
> >
> > On Sun, Jul 21, 2019 at 6:50 PM Michael Matz <matz....@frakked.de>
> > wrote:
> > Hi,
> >
> > On Sun, 21 Jul 2019, Ivan Medoedov wrote:
> >
> > > Hello,
> > > { .field = value } syntax is not supported by TCC.
> >
> > Why do you think so?
> >
> > % cat designated-init.c
> > struct S {
> > int a, b;
> > };
> >
> > struct S s = {.a = 2, .b = 3};
> > % ./tcc -c designated-init.c && echo ok
> > ok
> > %
> >
> >
> > Ciao,
> > Michael.
> >
> > _______________________________________________
> > Tinycc-devel mailing list
> > Tinycc-devel@nongnu.org
> > https://lists.nongnu.org/mailman/listinfo/tinycc-devel
> >
> >
> >_______________________________________________
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