On Sunday, 24 October 2021 at 14:38:44 UTC, jfondren wrote:
With nothing to the contrary, I'd take "must be terminated by a
null pointer" as "can't itself be a null pointer".
The execve(2) is more explicit:
"The argument argv is a pointer to a null-terminated array of
character pointers
On Sunday, 24 October 2021 at 14:38:44 UTC, jfondren wrote:
[...]
With nothing to the contrary, I'd take "must be terminated by a
null pointer" as "can't itself be a null pointer".
ah yeah, and thanks, of course ... how would the count of arg be
known without the sentinel...
On Sunday, 24 October 2021 at 14:21:52 UTC, Basile B. wrote:
What do you think ?
I'm very surprised that this is even allowed. Apparently it's
Linux userspace that normally complains about it:
https://git.savannah.gnu.org/cgit/gnulib.git/tree/lib/progname.c#n54
The manpages just say
```
On Sunday, 24 October 2021 at 14:21:52 UTC, Basile B. wrote:
The following code, on linux
[...]
What do you think ?
Forgot to say that this change
```diff
- execv("a", null);
+ execv("a", ["whatever".ptr].ptr);
```
makes the problem goes away, so it would be caused by how `null`
args are
The following code, on linux
```d
module runnable;
extern(C) int execv(const char* p, const char** args);
immutable src = `
import std.getopt;
void main(string[] args)
{
bool c;
getopt(args, "c", );
}
`;
void prepareProgram()
{
import std.process :
