From bf4df0efff027920a922a05e24fc07becc2a7f1e Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 4 Oct 2020 15:23:50 +0100
Subject: [PATCH] wip new bigfloats, Rust end

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 src/bigfloat.rs | 27 +++++++++++++++++++++++++++
 src/lib.rs      |  1 +
 2 files changed, 28 insertions(+)
 create mode 100644 src/bigfloat.rs

diff --git a/src/bigfloat.rs b/src/bigfloat.rs
new file mode 100644
index 00000000..d39244b6
--- /dev/null
+++ b/src/bigfloat.rs
@@ -0,0 +1,27 @@
+// See bigfloat.ts
+
+#![allow(unused_variables)]
+#![allow(dead_code)]
+#![allow(unused_mut)]
+
+enum Sign { Pos, Neg, }
+use Sign::*;
+
+struct Bigfloat {
+  sign: Sign,
+  exp: u16,
+  limbs: [[u16;3]],
+}
+
+impl Bigfloat {
+  fn from_str(s: &str) -> Option<Box<Self>> {
+    let mut s = s.as_bytes();
+    let mut s = s.iter();
+    let sign = match *s.next()? {
+      b'+' => Pos,
+      b'!' => Neg,
+      _ => None?,
+    };
+    panic!();
+  }
+}
diff --git a/src/lib.rs b/src/lib.rs
index e69492ef..fd0b9ec5 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -24,4 +24,5 @@ pub mod utils;
 pub mod mgmtchannel;
 pub mod debugreader;
 pub mod shapelib;
+pub mod bigfloat;
 #[path="slotmap-slot-idx.rs"] pub mod slotmap_slot_idx;
-- 
2.30.2