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Fix issue 20554 - std.algorithm.searching.all 's static assert produces a garbled error message

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Julian Fondren 2021-09-21 20:25:26 -05:00
parent d0bf92cab7
commit dc2bf7901f
1 changed files with 3 additions and 1 deletions
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4
std/algorithm/searching.d
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@ -122,7 +122,9 @@ template all(alias pred = "a")
if (isInputRange!Range)
{
static assert(is(typeof(unaryFun!pred(range.front))),
"`" ~ pred.stringof[1..$-1] ~ "` isn't a unary predicate function for range.front");
"`" ~ (isSomeString!(typeof(pred))
? pred.stringof[1..$-1] : pred.stringof)
~ "` isn't a unary predicate function for range.front");
import std.functional : not;
return find!(not!(unaryFun!pred))(range).empty;