From 15ae12aa2ee2ecb10ab309e7f524bd16bd7c66e4 Mon Sep 17 00:00:00 2001
From: Max Wash <mbswash@gmail.com>
Date: Mon, 28 Jul 2025 22:17:48 +0100
Subject: [PATCH] object: string: add b_string_duplicate()

---
 object/include/blue/object/string.h |  1 +
 object/string.c                     | 17 +++++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/object/include/blue/object/string.h b/object/include/blue/object/string.h
index 836d305..c8853e2 100644
--- a/object/include/blue/object/string.h
+++ b/object/include/blue/object/string.h
@@ -24,6 +24,7 @@ typedef enum b_strlen_flags {
 BLUE_API b_string *b_string_create(void);
 BLUE_API b_string *b_string_create_from_cstr(const char *s);
 BLUE_API b_string *b_string_create_from_c(char c, size_t count);
+BLUE_API b_string *b_string_duplicate(const b_string *str);
 
 static inline b_string *b_string_retain(b_string *str)
 {
diff --git a/object/string.c b/object/string.c
index a75c313..d948a29 100644
--- a/object/string.c
+++ b/object/string.c
@@ -170,6 +170,23 @@ struct b_string *b_string_create_from_c(char c, size_t count)
 	return str;
 }
 
+struct b_string *b_string_duplicate(const struct b_string *str)
+{
+	struct b_string *new_str = b_string_create();
+	if (!str) {
+		return NULL;
+	}
+
+	string_change_capacity(new_str, str->s_len);
+	const char *src = b_string_ptr(str);
+	char *dst = string_ptr(new_str);
+
+	memcpy(dst, src, str->s_len);
+	new_str->s_len = str->s_len;
+
+	return new_str;
+}
+
 char *b_string_steal(struct b_string *str)
 {
 	char *dest = NULL;