From 17238aac61836e2351509903a7c73fe67aa9ca71 Mon Sep 17 00:00:00 2001
From: Niels Lohmann <mail@nlohmann.me>
Date: Tue, 30 Jun 2026 09:10:19 +0200
Subject: [PATCH] :memo: fix documentation

Closes #4354: fix "Custom data source" example

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
---
 README.md | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 60ec6c873..81b54c36b 100644
--- a/README.md
+++ b/README.md
@@ -429,6 +429,8 @@ struct MyIterator {
     using reference = const char&;
     using iterator_category = std::input_iterator_tag;
 
+    explicit MyIterator(MyContainer* tgt = nullptr) : target(tgt) {}
+
     MyIterator& operator++() {
         target->advance();
         return *this;
@@ -450,12 +452,12 @@ MyIterator begin(MyContainer& tgt) {
 }
 
 MyIterator end(const MyContainer&) {
-    return {};
+    return MyIterator{};
 }
 
 void foo() {
     MyContainer c;
-    json j = json::parse(c);
+    json j = json::parse(begin(c), end(c));
 }
 ```