/* Defines the _ARGCHK macro used within the library *//* ch1-01-1 *//* ARGTYPE is defined in mycrypt_cfg.h */#if ARGTYPE == 0#include <signal.h>/* this is the default LibTomCrypt macro  */extern void crypt_argchk(char *v, char *s, int d);#define _ARGCHK(x) if (!(x)) { crypt_argchk(#x, __FILE__, __LINE__); }#elif ARGTYPE == 1/* fatal type of error */#define _ARGCHK(x) assert((x))#elif ARGTYPE == 2#define _ARGCHK(x) #endif/* ch1-01-1 */