From 0b8fd6aa207fed0fb5e3e553ac259fecfb414529 Mon Sep 17 00:00:00 2001
From: IbaiBuR <ibaibur@chessnibble.com>
Date: Tue, 15 Oct 2024 12:21:13 +0200
Subject: [PATCH] feat: Add parsing utils

BENCH: 21337504
---
 src/utils/parsing.hpp | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 src/utils/parsing.hpp

diff --git a/src/utils/parsing.hpp b/src/utils/parsing.hpp
new file mode 100644
index 0000000..712bfa4
--- /dev/null
+++ b/src/utils/parsing.hpp
@@ -0,0 +1,32 @@
+#pragma once
+
+#include <charconv>
+#include <optional>
+#include <string>
+#include <string_view>
+#include <type_traits>
+
+namespace utils::parsing {
+
+namespace internal {
+
+template <typename T>
+concept NumberInput = std::is_same_v<T, std::string> || std::is_same_v<T, std::string_view>;
+
+template <typename T>
+concept NumberOutput = std::is_integral_v<T> || std::is_floating_point_v<T>;
+
+} // namespace internal
+
+template <internal::NumberInput Input, internal::NumberOutput Output>
+constexpr std::optional<Output> to_number(const Input& s) {
+    Output     value{};
+    const auto result = std::from_chars(s.data(), s.data() + s.size(), value);
+
+    if (result.ec == std::errc())
+        return value;
+
+    return std::nullopt;
+}
+
+} // namespace utils::parsing