From 8d729883b3e134df8b9fc10f094df9fc3618bdb4 Mon Sep 17 00:00:00 2001
From: quou <quou@disroot.org>
Date: Wed, 31 Jul 2024 22:11:13 +1000
Subject: string_dup and string_len

---
 standard.c | 14 ++++++++++++++
 standard.h |  4 ++++
 2 files changed, 18 insertions(+)

diff --git a/standard.c b/standard.c
index 96677ea..afe6ad4 100644
--- a/standard.c
+++ b/standard.c
@@ -1,4 +1,5 @@
 #include "maths.h"
+#include "memory.h"
 #include "standard.h"
 
 int string_equal(const char* a, const char* b) {
@@ -17,6 +18,19 @@ int string_copy(char* dst, const char* src) {
 	return i;
 }
 
+int string_len(const char* s) {
+	int l;
+	for (l = 0; *s; s++, l++);
+	return l;
+}
+
+char* dup_string(Arena* a, const char* s) {
+	int size = string_len(s) + 1;
+	char* d = arena_alloc_aligned(a, size, 1);
+	string_copy(d, s);
+	return d;
+}
+
 int int_to_buf(int n, char* buf) {
 	int i, sign, t;
 	unsigned n1;
diff --git a/standard.h b/standard.h
index 8d58e78..2f82e40 100644
--- a/standard.h
+++ b/standard.h
@@ -3,8 +3,12 @@
 
 #define no_mangle extern "C"
 
+struct Arena;
+
 int string_equal(const char* a, const char* b);
 int string_copy(char* dst, const char* src);
+int string_len(const char* s);
+char* dup_string(struct Arena* a, const char* s);
 
 /* Not safe! */
 int f_to_buf(int f, char* buf);
-- 
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