Exploring raycasters and possibly make a little "doom like" game based on it.
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raycaster/dbg.h

39 lines
1.0 KiB

#ifndef __dbg_h__
#define __dbg_h__
#include <stdio.h>
#include <errno.h>
#include <string.h>
#ifdef NDEBUG
#define debug(M, ...)
#else
#define debug(M, ...) fprintf(stderr, "DEBUG %s:%d: " M "\n",\
__FILE__, __LINE__, ##__VA_ARGS__)
#endif
#define clean_errno() (errno == 0 ? "None" : strerror(errno))
#define log_err(M, ...) fprintf(stderr,\
"[ERROR] (%s:%d: errno: %s) " M "\n", __FILE__, __LINE__,\
clean_errno(), ##__VA_ARGS__)
#define log_warn(M, ...) fprintf(stderr,\
"[WARN] (%s:%d: errno: %s) " M "\n",\
__FILE__, __LINE__, clean_errno(), ##__VA_ARGS__)
#define log_info(M, ...) fprintf(stderr, "[INFO] (%s:%d) " M "\n",\
__FILE__, __LINE__, ##__VA_ARGS__)
#define check(A, M, ...) if(!(A)) {\
log_err(M, ##__VA_ARGS__); errno=0; goto error; }
#define sentinel(M, ...) { log_err(M, ##__VA_ARGS__);\
errno=0; goto error; }
#define check_mem(A) check((A), "Out of memory.")
#define check_debug(A, M, ...) if(!(A)) { debug(M, ##__VA_ARGS__);\
errno=0; goto error; }
#endif