From a2ef7cb75c619f3219492d7f655078fc8780a8f3 Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Sun, 16 Dec 2018 18:06:28 +1100
Subject: [PATCH] encode/number: set the view's remainder at exit

---
 encode/number.hpp | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/encode/number.hpp b/encode/number.hpp
index 9ee674fe..89eb1044 100644
--- a/encode/number.hpp
+++ b/encode/number.hpp
@@ -22,18 +22,19 @@ namespace cruft::encode {
     decode36 (cruft::view<char const*> &src)
     {
         ValueT accum = 0;
-        for (auto const i: src) {
-            accum *= 36;
 
-            switch (i) {
-            case '0'...'9': accum += i - '0';      continue;
-            case 'a'...'z': accum += i - 'a' + 10; continue;
-            case 'A'...'Z': accum += i - 'A' + 10; continue;
-            default:
-                throw std::invalid_argument ("invalid character");
+        auto cursor = src.begin ();
+        for (auto last = src.end (); cursor != last; ++cursor) {
+            switch (auto i = *cursor; i) {
+            case '0'...'9': accum = accum * 36 + i - '0';      continue;
+            case 'a'...'z': accum = accum * 36 + i - 'a' + 10; continue;
+            case 'A'...'Z': accum = accum * 36 + i - 'A' + 10; continue;
             }
+
+            break;
         }
 
+        src = { cursor, src.end () };
         return accum;
     }