From 363fbc6e98f832471a17a10ec18e8823df6a2ed5 Mon Sep 17 00:00:00 2001
From: 魏曹先生 <1992414357@qq.com>
Date: Thu, 16 Apr 2026 21:31:57 +0800
Subject: Initialize Rust project with billing calculation functionality

---
 src/error.rs | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 src/error.rs

(limited to 'src/error.rs')

diff --git a/src/error.rs b/src/error.rs
new file mode 100644
index 0000000..a9c23b1
--- /dev/null
+++ b/src/error.rs
@@ -0,0 +1,8 @@
+#[derive(thiserror::Error, Debug)]
+pub enum BillSplitError {
+    #[error("Paid amount cannot be negative")]
+    NegativePaidAmount,
+
+    #[error("Duplicate split members found")]
+    DuplicateSplitMembers,
+}
-- 
cgit