assert.h

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// =====================================================================================================================
//  fennec, a free and open source game engine
//  Copyright © 2025  Medusa Slockbower
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
// =====================================================================================================================
 
 
#ifndef FENNEC_LANG_ASSERT_H
#define FENNEC_LANG_ASSERT_H
 
 
#if FENNEC_COMPILER_MSVC
#define __PRETTY_FUNCTION__ __FUNCSIG__
#endif
 
using assert_handler = void (*)(const char *, const char *, int , const char *);
 
void _assert_impl(const char* expression, const char* file, int line, const char* function, const char* desc, bool halt);
 
// flagged unlikely to optimize branch prediction
#define assert(expression, description) \
    if(not(expression)) [[unlikely]] { \
        _assert_impl(#expression, __FILE__, __LINE__, __PRETTY_FUNCTION__, description, not FENNEC_RELEASE); \
    }
 
#define assertf(expression, description) \
    if(not(expression)) [[unlikely]] { \
        _assert_impl(#expression, __FILE__, __LINE__, __PRETTY_FUNCTION__, description, true); \
    }
 
#if FENNEC_RELEASE
#define assertd(expression, description)
#else
#define assertd(expression, description) assert(expression, description)
#endif
 
#endif // FENNEC_LANG_ASSERT_H