From: clyne <clyne@bitgloo.com>
Date: Fri, 26 Jun 2020 22:11:57 +0000 (-0400)
Subject: Add support for range-based for loops
X-Git-Url: https://code.bitgloo.com/?a=commitdiff_plain;h=84401c74731927a237ccd8e7b59444d3f0630664;p=clyne%2Fconstexpr-to-string.git

Add support for range-based for loops
---

diff --git a/to_string.hpp b/to_string.hpp
index 21b5f48..1d88b1a 100644
--- a/to_string.hpp
+++ b/to_string.hpp
@@ -43,19 +43,15 @@ struct to_string_t {
         }
     }
 
-    /**
-     * Allows implicit conversion of this object to a `char *`.
-     */
-    constexpr operator char_type *() {
-        return buf;
-    }
+    // Support implicit casting to `char *` or `const char *`.
+    constexpr operator char_type *() { return buf; }
+    constexpr operator const char_type *() const { return buf; }
     
-    /**
-     * Allows implicit conversion of this object to a `const char *`.
-     */
-    constexpr operator const char_type *() const {
-        return buf;
-    }
+    // Support range-based for loops
+    constexpr auto begin() { return buf; }
+    constexpr auto begin() const { return buf; }
+    constexpr auto end() { return buf + sizeof(buf) / sizeof(buf[0]); }
+    constexpr auto end() const { return buf + sizeof(buf) / sizeof(buf[0]); }
 };
 
 /**