Hi,

I have a function:

string strippedString(ubyte[] block) {
	return (cast(string)block).stripRight("\0");
}

With dmd it compiles, with ldc it produces the following error message:

Error: template std.string.stripRight cannot deduce function from argument types !()(string, string), candidates are:
/usr/lib/ldc/x86_64-linux-gnu/include/d/std/string.d(2902,6):        std.string.stripRight(Range)(Range str) if (isSomeString!Range || isRandomAccessRange!Range && hasLength!Range && hasSlicing!Range && !isConvertibleToString!Range && isSomeChar!(ElementEncodingType!Range))
/usr/lib/ldc/x86_64-linux-gnu/include/d/std/string.d(3015,6):        std.string.stripRight(Range)(auto ref Range str) if (isConvertibleToString!Range)
ldmd2 failed with exit code 1.

Why?

The modified function does not even compile with either compiler:

string strippedString(ubyte[] block) {
	return cast(string)( block.stripRight(0) );
}

How can I make the function more specific, so that the compiler knows, which option to take?

Kind regards,
Sisor

On Saturday, 5 May 2018 at 16:42:12 UTC, Sisor wrote:
> Error: template std.string.stripRight cannot deduce function from argument types

You used http://dpldocs.info/experimental-docs/std.string.stripRight.html

This function only takes one argument and strips whitespace.

You want http://dpldocs.info/experimental-docs/std.algorithm.mutation.stripRight.1.html

This function can take two arguments and strips the second from the first.

On Saturday, 5 May 2018 at 17:06:13 UTC, Neia Neutuladh wrote:
> On Saturday, 5 May 2018 at 16:42:12 UTC, Sisor wrote:
>> Error: template std.string.stripRight cannot deduce function from argument types
>
> You used http://dpldocs.info/experimental-docs/std.string.stripRight.html
>
> This function only takes one argument and strips whitespace.
>
> You want http://dpldocs.info/experimental-docs/std.algorithm.mutation.stripRight.1.html
>
> This function can take two arguments and strips the second from the first.

https://dlang.org/phobos/std_string.html#.stripRight has an overload with a second argument.

The std.algorithm.mutation version does only work with my second solution, which solves the problem. So thanks!

But I still don't understand the problem.