#ifndef UC_BACKTRACE_H_
#define UC_BACKTRACE_H_
#include <stddef.h>
#include <stdlib.h>
#include "utils.h"

#ifdef __cplusplus
extern "C" {
#endif

#define UC_BACKTRACE_STDERR uc_backtrace_fd(2)
/**
 * Print a stacktrace to the given file descriptor.
 *
 * @param fd filedescriptor to write to.
 */
void uc_backtrace_fd(int fd);
/**
 * Print a stactrace to the given buffer
 * (Note that unlike uc_backtrace_fd(), this function
 * does malloc() call and may fail in a signal handler or
 * if memory is corrupted.
 *
 * @param buf buffer to place the stacktrace in.
 * @param len length of buffer
 */
void uc_backtrace_buf(char *buf, size_t len);

/** 
 * assert() that is not affected by NDEBUG define
 */
#define UC_ASSERT(expr)\
 do {\
    if (!(expr) ) {\
        fprintf(stderr,\
        "UC_ASSERT failed '%s' %s\n", UC_STRINGIFY(expr), UC_SRC_LOCATION);\
        UC_BACKTRACE_STDERR;\
        abort();\
    }\
} while (0)

/** 
 * Macro for asserting code that should not be reached, 
 * terminates the program if executed
 */
#define UC_NOT_REACED()\
do {\
    fprintf(stderr, "UC_NOT_REACHED at %s\n", UC_SRC_LOCATION);\
    UC_BACKTRACE_STDERR;\
    abort();\
} while (0)

#ifdef __cplusplus
}
#endif

#endif