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#ifndef ITS1_UTIL_H_INCLUDED
#define ITS1_UTIL_H_INCLUDED
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#ifndef NDEBUG
static void
error(const char *msg, ...)
{
va_list ap;
va_start(ap, msg);
fprintf(stderr, "Error: ");
vfprintf(stderr, msg, ap);
va_end(ap);
fprintf(stderr, "\n");
exit(EXIT_FAILURE);
}
#define ERROR(msg) error(msg " in \"%s()\" (%s:%d)", __func__, __FILE__, __LINE__)
#else
#define ERROR(msg) /**/
#endif
#ifndef NELEM
#define NELEM(x) (sizeof(x) / sizeof(x[0]))
#endif
#endif
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