From 520af370425c90283b3a7472e3fc6cee214b8815 Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Tue, 16 Apr 2019 10:18:10 +1000
Subject: [PATCH] format: support string_view as a string

---
 format.hpp | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/format.hpp b/format.hpp
index 6cc98afb..dd3247f7 100644
--- a/format.hpp
+++ b/format.hpp
@@ -265,9 +265,13 @@ namespace cruft::format {
                 break;
 
             case type_t::STRING:
-                if (!std::is_same_v<ValueT, view<const char*>> && !std::is_same_v<ValueT, std::string>)
-                    throw std::runtime_error ("expected string value");
-                break;
+                if (std::is_same_v<ValueT, view<const char*>>)
+                    break;
+                if (std::is_same_v<ValueT, std::string>)
+                    break;
+                if (std::is_same_v<ValueT, std::string_view>)
+                    break;
+                throw std::runtime_error ("expected string value");
 
             case type_t::POINTER:
                 if (!std::is_pointer_v<ValueT> && !std::is_integral_v<ValueT>)