check this out
struct ContentView: View {
var body: some View {
GeometryReader { geometry in
Color.gray
.edgesIgnoringSafeArea(.top)
.overlay(
ZStack (alignment: .topLeading) {
RoundedRectangle(cornerRadius: 16,
style: .continuous)
.foregroundColor(.white)
.shadow(radius: 10)
// Tried using .mask here
Rectangle()
.fill(Color.pink)
.frame(minWidth: 0, maxWidth: .infinity, maxHeight: 150, alignment: .top)
.clipShape(RoundedRectangle(cornerRadius: 16))
}
.frame(width: 300, height: 450, alignment: .center)
)
}
.edgesIgnoringSafeArea(.all)
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
Just out of curiosity I've taken a look at what happens under the hood, and I've used [dtruss/strace][1] on each test.
C++
./a.out < in
Saw 6512403 lines in 8 seconds. Crunch speed: 814050
syscalls `sudo dtruss -c ./a.out < in`
CALL COUNT
__mac_syscall 1
<snip>
open 6
pread 8
mprotect 17
mmap 22
stat64 30
read_nocancel 25958
Python
./a.py < in
Read 6512402 lines in 1 seconds. LPS: 6512402
syscalls `sudo dtruss -c ./a.py < in`
CALL COUNT
__mac_syscall 1
<snip>
open 5
pread 8
mprotect 17
mmap 21
stat64 29
[1]: http://en.wikipedia.org/wiki/Strace
