cpp-dotenv/include/dotenv.h at main · ProxySQL/cpp-dotenv · GitHub

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#pragma once


#include<string>


namespacedotenv
{
classdotenv
 {
public:

using key_type = std::string;
using value_type = std::string;

public:

 dotenv& load_dotenv(const std::string& dotenv_path = ".env",
constbool overwrite = false,
constbool interpolate = true);

const value_type operator[](const key_type& k) const;

public:

virtual~dotenv() = default;
dotenv(const dotenv&) = delete;
voidoperator=(const dotenv&) = delete;

static dotenv& instance();

bool loaded = false;

private:

dotenv() = default;

private:

// Declare static members (definitions are inline after the class)
// NOTE: env_filename is kept for backward compatibility; external code
// may reference dotenv::dotenv::env_filename directly.
staticconst std::string env_filename;
static dotenv _instance;

 };


// C++17 inline variable definitions after class is complete
// Note: _instance cannot be inline inside the class due to incomplete type
inlineconst std::string dotenv::env_filename = ".env";
inline dotenv dotenv::_instance;


extern dotenv& env;
}