Update base/strings/unicode.jl

Annotate `@ccall` macro Co-authored-by: Shuhei Kadowaki <40514306+aviatesk@users.noreply.github.com>
JuliaLang · May 7, 2024 · 6acb90d · 6acb90d
1 parent 4fc39d4
commit 6acb90d
Showing 1 changed file with 2 additions and 8 deletions.
diff --git a/base/strings/unicode.jl b/base/strings/unicode.jl
@@ -386,14 +386,8 @@ julia> islowercase('❤')
 false
 ```
 """
-function islowercase(c::AbstractChar)
-    if ismalformed(c)
-        false
-    else
-        ui = UInt32(c)::UInt32 # type-assertion to ensure that we may assume :foldable
-        @assume_effects :foldable Bool(ccall(:utf8proc_islower, Cint, (UInt32,), ui))
-    end
-end
+islowercase(c::AbstractChar) = ismalformed(c) ? false :
+    Bool(@assume_effects :foldable @ccall utf8proc_islower(UInt32(c)::UInt32)::Cint)
 
 # true for Unicode upper and mixed case