assert.h

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#pragma once
 
#include <cstdlib>
#include <csignal>
#include <cstdio>
 
#define DEBUGGER {std::raise(SIGINT);}
 
#define KILL(reason) { fprintf(stderr, "Error: %s\n  %s:%d\n", reason, __FILE__, __LINE__); DEBUGGER std::exit(1); }
 
#ifndef DNDEBUG
#define ASSERT(cond, reason) if (!(cond)) [[unlikely]] KILL(reason);
#undef assert
#define assert(cond) ASSERT(cond, "Assert failed")
#else
#define ASSERT(cond, reason)
#define assert(cond)
#endif
 
#define WARN(reason) { fprintf(stderr, "WARN: %s\n  %s:%d\n", reason, __FILE__, __LINE__); }