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#pragma once
#include <cstddef>
#include <cstdio>
#include <limits>
#include <type_traits>
#ifdef _MSC_VER
# define FUNCTION_NAME __FUNCSIG__
#else
# define FUNCTION_NAME __PRETTY_FUNCTION__
#endif
namespace Magnum::Examples {
using size_t = std::size_t;
using ssize_t = std::make_signed_t<std::size_t>;
struct exception {
const char* file = nullptr;
const char* function = nullptr;
int line = -1;
};
struct assertion_failure final : exception
{
char msg[128 - sizeof(int) - sizeof(char*)];
};
struct out_of_range final : exception {
ssize_t value = 0;
ssize_t min = std::numeric_limits<ssize_t>::min();
ssize_t max = std::numeric_limits<ssize_t>::max();
};
struct key_error final : exception {
ssize_t value = 0;
};
} // namespace Magnum::Examples
#define KEY_ERROR(value) \
::Magnum::Examples::key_error{{__FILE__, FUNCTION_NAME, __LINE__}, (value)}
#define OUT_OF_RANGE(value, min, max) \
::Magnum::Examples::out_of_range{ \
{__FILE__, FUNCTION_NAME, __LINE__}, \
::Magnum::Examples::ssize_t((value)), \
::Magnum::Examples::ssize_t((min)), \
::Magnum::Examples::ssize_t((max)) \
}
#define ABORT_WITH(exc_type, ...) ([&]() { \
exc_type _e; \
_e.line = __LINE__; \
_e.file = __FILE__; \
_e.function = FUNCTION_NAME; \
std::snprintf(_e.msg, sizeof(_e.msg), __VA_ARGS__); \
throw _e; \
}())
#define ABORT(...) \
ABORT_WITH(::Magnum::Examples::assertion_failure, __VA_ARGS__)
#define ASSERT(expr) \
do { \
if (!(expr)) \
ABORT("assertion failed: '%s' in %s:%d", \
#expr, __FILE__, __LINE__); \
} while(false)
#define GAME_DEBUG_OUT(pfx, ...) ([&]() { \
if constexpr (sizeof((pfx)) > 1) \
std::fputs((pfx), stderr); \
std::fprintf(stderr, __VA_ARGS__); \
std::fputs("\n", stderr); \
std::fflush(stderr); \
}())
#define WARN(...) GAME_DEBUG_OUT("warning: ", __VA_ARGS__)
#define ERR(...) GAME_DEBUG_OUT("error: ", __VA_ARGS__)
#define DEBUG(...) GAME_DEBUG_OUT("", __VA_ARGS__)
#define progn(...) [&]{__VA_ARGS__;}()
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