exception.hpp

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#pragma once

#include <exception>
#include <stdexcept>
#include <string>
#include <string_view>

#include <SDL_error.h>

#ifdef CPP_SDL2_DISABLE_EXCEPTIONS
#include <iostream> //Instead of throwing, we are going to dump the function and error into stderr via std::cerr
#endif

namespace sdl
{
#ifndef CPP_SDL2_DISABLE_EXCEPTIONS

class Exception : public std::exception
{
public:
    Exception(std::string const& function) : function_{function}, error_{SDL_GetError()}
    {
        SDL_ClearError();
    }

    std::string function() { return function_; }
    std::string error() { return error_; }

    const char* what() const noexcept override
    {
        if (what_.empty())
        {
            what_ = "function: ";
            what_ += function_;
            what_ += " SDL error: ";
            what_ += error_;
        }

        return what_.c_str();
    }

private:
    std::string function_;
    std::string error_;
    mutable std::string what_;
};

#else // Do not use exceptions

// Stub the 'throw' keyword
#define throw

class Exception
{
public:
    Exception(std::string const& function)
    {
        std::cerr << "Error in : " << function << "\n";
        const auto error = SDL_GetError();
        std::cerr << "Error : " << error << "\n";
        abort();
    }
};

#endif

} // namespace sdl