_Expression 807 src/simh/sim_defs.h # define ASSURE(_Expression) while (!(_Expression)) {fprintf(stderr, "%s failed at %s line %d\n", #_Expression, __FILE__, __LINE__); \ _Expression 808 src/simh/sim_defs.h sim_printf("%s failed at %s line %d\n", #_Expression, __FILE__, __LINE__); \