On Sunday, 29 December 2019 at 09:44:18 UTC, MoonlightSentinel
wrote:
int i = a.countUntil(55);
I was trying to do this with an array of pointers, but I get an
error (which suggests to me that I don't know what data type a
pointer is):
find_in_array_object.d(25): Error: cannot cast expression
newObject of type find_in_array_object.MyObject to ulong
find_in_array_object.d(34): Error: template
std.algorithm.searching.countUntil cannot deduce function from
argument types !()(MyObject[], ulong), candidates are:
C:\D\dmd2\windows\bin\..\..\src\phobos\std\algorithm\searching.d(768): std.algorithm.searching.countUntil(alias pred
= "a == b", R, Rs...)(R haystack, Rs needles) if (isForwardRange!R && (Rs.length > 0) &&
(isForwardRange!(Rs[0]) == isInputRange!(Rs[0])) && is(typeof(startsWith!pred(haystack, needles[0]))) &&
(Rs.length == 1 || is(typeof(countUntil!pred(haystack, needles[1..__dollar])))))
C:\D\dmd2\windows\bin\..\..\src\phobos\std\algorithm\searching.d(856):
std.algorithm.searching.countUntil(alias pred = "a == b", R, N)(R haystack, N needle)
if (isInputRange!R && is(typeof(binaryFun!pred(haystack.front, needle)) : bool))
C:\D\dmd2\windows\bin\..\..\src\phobos\std\algorithm\searching.d(915):
std.algorithm.searching.countUntil(alias pred, R)(R haystack) if (isInputRange!R
&& is(typeof(unaryFun!pred(haystack.front)) : bool))
It's not a ulong? Have I forgotten so much?
