From f80101153e62663f9b65d992288a02bb2326f84e Mon Sep 17 00:00:00 2001
From: poz <poz@poz.pet>
Date: Sat, 16 Aug 2025 02:39:38 +0200
Subject: [PATCH 1/3] derive `Copy` and `Clone` for `ErrorKind`

---
 src/err.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/err.rs b/src/err.rs
index 6396b8c..f249eba 100644
--- a/src/err.rs
+++ b/src/err.rs
@@ -29,7 +29,7 @@ impl BindingErrorCode {
 /// Type of error: `Binding` (see [`BindingErrorCode`]), or `Tre`
 ///
 /// See the TRE documentation for more information on valid error codes for `Tre`.
-#[derive(Debug, PartialEq, Eq)]
+#[derive(Debug, Copy, Clone, PartialEq, Eq)]
 pub enum ErrorKind {
     /// Binding-specific error
     Binding(BindingErrorCode),

From a9fea82aaee57a5c1b3d636639fdabf168bd0bf6 Mon Sep 17 00:00:00 2001
From: poz <poz@poz.pet>
Date: Sat, 16 Aug 2025 02:40:06 +0200
Subject: [PATCH 2/3] derive `Clone` for `RegexError`

---
 src/err.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/err.rs b/src/err.rs
index f249eba..0356e5b 100644
--- a/src/err.rs
+++ b/src/err.rs
@@ -39,7 +39,7 @@ pub enum ErrorKind {
 }
 
 /// Error type returned in results
-#[derive(Debug, PartialEq, Eq)]
+#[derive(Debug, Clone, PartialEq, Eq)]
 pub struct RegexError {
     /// Kind of error
     pub kind: ErrorKind,

From ab3dfc5fc9770cf1630fd13fc12235b63b8d4065 Mon Sep 17 00:00:00 2001
From: poz <poz@poz.pet>
Date: Sun, 24 Aug 2025 22:31:38 +0200
Subject: [PATCH 3/3] fix char casts in ffi calls

---
 src/approx.rs | 4 ++--
 src/exec.rs   | 3 ++-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/approx.rs b/src/approx.rs
index 2946165..a3fa08b 100644
--- a/src/approx.rs
+++ b/src/approx.rs
@@ -2,7 +2,7 @@
 // See LICENSE file in the project root for full license text.
 
 use std::borrow::Cow;
-use std::ffi::c_int;
+use std::ffi::{c_char, c_int};
 use std::hint::unreachable_unchecked;
 
 use crate::{
@@ -372,7 +372,7 @@ impl Regex {
         let result = unsafe {
             tre::tre_reganexec(
                 compiled_reg_obj,
-                data.as_ptr().cast::<i8>(),
+                data.as_ptr().cast::<c_char>(),
                 data.len(),
                 &mut amatch,
                 *params.get(),
diff --git a/src/exec.rs b/src/exec.rs
index 55e2cc7..543413e 100644
--- a/src/exec.rs
+++ b/src/exec.rs
@@ -2,6 +2,7 @@
 // See LICENSE file in the project root for full license text.
 
 use std::borrow::Cow;
+use std::ffi::c_char;
 use std::hint::unreachable_unchecked;
 
 use crate::{err::{BindingErrorCode, ErrorKind, RegexError, Result}, flags::RegexecFlags, tre, Regex};
@@ -169,7 +170,7 @@ impl Regex {
         let result = unsafe {
             tre::tre_regnexec(
                 compiled_reg_obj,
-                data.as_ptr().cast::<i8>(),
+                data.as_ptr().cast::<c_char>(),
                 data.len(),
                 nmatches,
                 match_vec.as_mut_ptr(),