On Wed, 18 May 2011 16:57:37 -0400, Andrej Mitrovic <n...@none.none> wrote:

Skip the rest of the code until you reach main:
http://codepad.org/zPAgFnPX

We have this notion that string *literals* are zero-terminated, which enables us to send them to C functions expecting zero-terminated char* strings.

But the same doesn't apply to wide string literals, e.g. "somestring"w.

Yes it does...

steves@steve-laptop:~/testd$ cat teststringlit.d
wstring ws = "abcde"w;
steves@steve-laptop:~/testd$ ~/dmd-2.053/linux/bin32/dmd -c teststringlit.d
steves@steve-laptop:~/testd$ ~/dmd-2.053/linux/bin32/obj2asm teststringlit.o

....

.rodata segment
        db      061h,000h,062h,000h,063h,000h,064h,000h ;a.b.c.d.
        db      065h,000h,000h,000h     ;e...
.rodata ends

....

If it did, its would save quite a bit of typing when calling WinAPI functions that expect wide strings, instead of having to call "somestring".toUTF16z.

So currently:
immutable(char)[] literal implicitly convertible to const(char)* and char*. immutable(wchar)[] literal not implicitly convertible to const(wchar)* and wchar*.

That doesn't make sense... hm...

tried it out, definitely a bug.  I get the error:

teststringlit.d(7): Error: function teststringlit.foo (const(wchar)* widestr) is not callable using argument types (immutable(wchar)[]) teststringlit.d(7): Error: cannot implicitly convert expression ("abcde"w) of type immutable(wchar)[] to const(wchar)*

A wstring literal should be able to be passed to a const(wchar)* parameter.

So the literal *is* zero terminated, but the compiler isn't letting you pass it directly to a const(wchar)*.

Please file with bugzilla. As a workaround, you should be able to do "somestring"w.ptr;

-Steve

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