Re: argument type const char* can pass string, buf why const wchar* can not pass wstring

[riki via Digitalmars-d-learn]

On Sunday, 27 December 2015 at 04:54:07 UTC, Basile B. wrote:

On Sunday, 27 December 2015 at 03:34:18 UTC, riki wrote:

void ccf(const char* str){}
void cwf(const wchar* str){}

void main()
{
    ccf("aaa");    //ok
    cwf("xxx"w); // error and why ?
}

IDK but usually the const storage class is used for narrow strings because it allows to pass either `char[]` or `string[]`:

```
void ccf(const char[] str){}
void cwf(const wchar[] str){}

void main()
{
    ccf("aaa");
    cwf("xxx"w);
    ccf("aaa".dup);
    cwf("xxx"w.dup);
}
```

I'm actually surprised that one works, maybe both should fail.

windows api is use const(wchar)*, not const wchar[]