From 18ae278e27b9d7b4a068a0dd88c046d5b7cb618b Mon Sep 17 00:00:00 2001
From: Kubat <mael.martin31@gmail.com>
Date: Tue, 31 Aug 2021 11:23:33 +0200
Subject: [PATCH] MISC: Add the string trait
---
src/Lib/Utils.hh | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/src/Lib/Utils.hh b/src/Lib/Utils.hh
index 9c223677..66d6507c 100644
--- a/src/Lib/Utils.hh
+++ b/src/Lib/Utils.hh
@@ -26,6 +26,7 @@
// Use chrono instead of std::chrono...
namespace chrono = std::chrono;
+using chrono::duration_cast;
// Prety define for OpenMP's parallel for loop with indentation not fucked up
// by clang-format.
@@ -58,8 +59,23 @@ concept PropertyConstViewable = requires(T element)
// clang-format on
};
+// Concept with a better name for inheritence between types
template <class T, class U>
concept Derived = std::is_base_of<U, T>::value;
+
+// Concept for string things
+template <typename T>
+concept StringType = requires(T str)
+{
+ // clang-format off
+ typename T::iterator; // Can iterate
+ typename T::value_type; // The `Char`
+ { str.size() } -> std::convertible_to<std::size_t>;
+ { str.begin() } -> std::same_as<typename T::iterator>;
+ { str.end() } -> std::same_as<typename T::iterator>;
+ { str[0] } -> std::same_as<typename T::value_type>;
+ // clang-format on
+};
}
namespace Vivy::Utils
--
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