Description

Reproduction steps

100% reproduction

Expected vs. actual results

struct Person {
std::string name;
int age;
NLOHMANN_DEFINE_TYPE_INTRUSIVE(Person, name, age)
};

Person person;
person.name = "中文字符";
person.age = 23;
nlohmann::json js = person;
const char *str = js.dump().c_str();

js.dump().c_str(); This will make the string garbled

but js.dump() assignment to std::string show the correct string

Minimal code example

No response

Error messages

No response

Compiler and operating system

ohos 5.0

Library version

current version

Validation

• The bug also occurs if the latest version from the develop branch is used.
• I can successfully compile and run the unit tests.