From 09c57545bc7fe7a842dd31b739506ff3d9da347e Mon Sep 17 00:00:00 2001
From: Gary Talent <gary@drinkingtea.net>
Date: Sun, 28 Jan 2024 16:29:39 -0600
Subject: [PATCH] [ox/std] Add Vector::at

---
 deps/ox/src/ox/std/vector.hpp | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/deps/ox/src/ox/std/vector.hpp b/deps/ox/src/ox/std/vector.hpp
index 2bb6008f..87033fda 100644
--- a/deps/ox/src/ox/std/vector.hpp
+++ b/deps/ox/src/ox/std/vector.hpp
@@ -221,6 +221,12 @@ class Vector: detail::VectorAllocator<T, Allocator, SmallVectorSize> {
 
 		constexpr const T &operator[](std::size_t i) const noexcept;
 
+		[[nodiscard]]
+		constexpr Result<T*> at(size_t i) noexcept;
+
+		[[nodiscard]]
+		constexpr Result<T const*> at(size_t i) const noexcept;
+
 		[[nodiscard]]
 		constexpr Result<T*> front() noexcept;
 
@@ -416,6 +422,22 @@ constexpr const T &Vector<T, SmallVectorSize, Allocator>::operator[](std::size_t
 	return m_items[i];
 }
 
+template<typename T, std::size_t SmallVectorSize, typename Allocator>
+constexpr Result<T*> Vector<T, SmallVectorSize, Allocator>::at(size_t i) noexcept {
+	if (i < size()) {
+		return &operator[](i);
+	}
+	return OxError(1, "Vector: Invalid index");
+}
+
+template<typename T, std::size_t SmallVectorSize, typename Allocator>
+constexpr Result<T const*> Vector<T, SmallVectorSize, Allocator>::at(size_t i) const noexcept {
+	if (i < size()) {
+		return &operator[](i);
+	}
+	return OxError(1, "Vector: Invalid index");
+}
+
 template<typename T, std::size_t SmallVectorSize, typename Allocator>
 constexpr Result<T*> Vector<T, SmallVectorSize, Allocator>::front() noexcept {
 	if (!m_size) {