On Tuesday, 14 December 2021 at 08:07:43 UTC, WebFreak001 wrote:
The best way would be not doing this at all - when you
manipulate strings/arrays in D you can do so by just assigning
the elements like this:
```d
immutable(char)[] replaceChar(char[] str, char ch1, char ch2)
{
for (ulong
On Monday, 13 December 2021 at 22:43:14 UTC, forkit wrote:
[...]
//char* w = cast(char*)str; // nope. a pointer to a string
constant is
// (supposed to be) immutable,
so expect undefined behaviour.
note:
//char* w = cast(char*)str.toStringz; // also
On Mon, Dec 13, 2021 at 10:43:14PM +, forkit via Digitalmars-d-learn wrote:
> On Monday, 13 December 2021 at 21:13:25 UTC, H. S. Teoh wrote:
> >
> > What you should be doing is:
> >
> > return to!string(str[0 .. len]);
> >
> > Or just:
> >
> > return str[0 .. len].idup;
[...]
>
On Monday, 13 December 2021 at 21:13:25 UTC, H. S. Teoh wrote:
What you should be doing is:
return to!string(str[0 .. len]);
Or just:
return str[0 .. len].idup;
T
oh.. so many different ways...(to both produce the same bug, and
also to produce the correct output).
...
On Monday, 13 December 2021 at 20:58:42 UTC, forkit wrote:
immutable(char)[] replaceChar(char* str, ulong len, char ch1,
char ch2)
//snip
return to!(immutable(char)[])(str);
}
You're calling a `to` on a char pointer, which, ostensibly, would
look for null terminator. Which there may
On Mon, Dec 13, 2021 at 08:58:42PM +, forkit via Digitalmars-d-learn wrote:
[...]
> immutable(char)[] replaceChar(char* str, ulong len, char ch1, char ch2)
> {
> for (ulong i = 0; i < len; i++)
> {
> if (str[i] == ch1)
> {
> writefln("Found %c at str[%d]",
On Mon, Dec 13, 2021 at 08:47:12PM +, forkit via Digitalmars-d-learn wrote:
> On Monday, 13 December 2021 at 20:28:26 UTC, H. S. Teoh wrote:
> > On Mon, Dec 13, 2021 at 08:04:24PM +, forkit via Digitalmars-d-learn
> > wrote:
[...]
> > > (this produces an unpredictable result??)
> > > char*
On Monday, 13 December 2021 at 20:28:26 UTC, H. S. Teoh wrote:
On Mon, Dec 13, 2021 at 08:04:24PM +, forkit via
Digitalmars-d-learn wrote:
On Monday, 13 December 2021 at 12:06:53 UTC, WebFreak001 wrote:
>
> You should really use `.dup` if you want to mutate your
> string. (You would need
On Monday, 13 December 2021 at 20:28:26 UTC, H. S. Teoh wrote:
On Mon, Dec 13, 2021 at 08:04:24PM +, forkit via
Digitalmars-d-learn wrote:
On Monday, 13 December 2021 at 12:06:53 UTC, WebFreak001 wrote:
>
> You should really use `.dup` if you want to mutate your
> string. (You would need
On Mon, Dec 13, 2021 at 08:04:24PM +, forkit via Digitalmars-d-learn wrote:
> On Monday, 13 December 2021 at 12:06:53 UTC, WebFreak001 wrote:
> >
> > You should really use `.dup` if you want to mutate your string. (You
> > would need to duplicate anyway if you don't want an unsafe cast)
>
>
On Monday, 13 December 2021 at 12:06:53 UTC, WebFreak001 wrote:
You should really use `.dup` if you want to mutate your string.
(You would need to duplicate anyway if you don't want an unsafe
cast)
(this produces an unpredictable result??)
char* w = cast(char*)str.dup;
(but this seems to
On Monday, 13 December 2021 at 11:09:18 UTC, drug wrote:
On 13.12.2021 13:49, forkit wrote:
On Monday, 13 December 2021 at 09:49:05 UTC, forkit wrote:
char* w = cast(char*)str.toStringz; // this seems to be the
solution
class has ended ;-)
That's because `str` is initialized by a
On 13.12.2021 14:26, ag0aep6g wrote:
On 13.12.21 12:09, drug wrote:
That's because `str` is initialized by a literal and you can not
change it by definition. When you call `toStringz` it duplicates that
literal (adding terminating zero at the end) and the duplicate is
mutable. I would
On 13.12.21 12:09, drug wrote:
That's because `str` is initialized by a literal and you can not change
it by definition. When you call `toStringz` it duplicates that literal
(adding terminating zero at the end) and the duplicate is mutable. I
would recommend do not use `toStringz` and just
On 13.12.2021 13:49, forkit wrote:
On Monday, 13 December 2021 at 09:49:05 UTC, forkit wrote:
char* w = cast(char*)str.toStringz; // this seems to be the solution
class has ended ;-)
That's because `str` is initialized by a literal and you can not change
it by definition. When you
On Monday, 13 December 2021 at 09:49:05 UTC, forkit wrote:
char* w = cast(char*)str.toStringz; // this seems to be the
solution
class has ended ;-)
On Monday, 13 December 2021 at 09:49:05 UTC, forkit wrote:
oh...
Windows
- dmd version is 2.098.0-dirty
- ldc2 version is 1.28 (based on dmd v2.098.0)
Linux
- dmd version is 2.098
- ldc2 version is 1.20.1 (based on dmd v2.090.1)
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