REG_MATCH_NULL_STRING_P 1287 regex.cpp      			REG_MATCH_NULL_STRING_P (reg_info[this_reg]));	\
REG_MATCH_NULL_STRING_P 3886 regex.cpp            REG_MATCH_NULL_STRING_P (reg_info[mcnt]) = MATCH_NULL_UNSET_VALUE;
REG_MATCH_NULL_STRING_P 4215 regex.cpp                if (REG_MATCH_NULL_STRING_P (reg_info[*p]) == MATCH_NULL_UNSET_VALUE)
REG_MATCH_NULL_STRING_P 4216 regex.cpp                  REG_MATCH_NULL_STRING_P (reg_info[*p])
REG_MATCH_NULL_STRING_P 4224 regex.cpp                old_regstart[*p] = REG_MATCH_NULL_STRING_P (reg_info[*p])
REG_MATCH_NULL_STRING_P 4265 regex.cpp                old_regend[*p] = REG_MATCH_NULL_STRING_P (reg_info[*p])
REG_MATCH_NULL_STRING_P 5286 regex.cpp            if (REG_MATCH_NULL_STRING_P (reg_info[reg_no]) == MATCH_NULL_UNSET_VALUE)
REG_MATCH_NULL_STRING_P 5287 regex.cpp              REG_MATCH_NULL_STRING_P (reg_info[reg_no]) = ret;
REG_MATCH_NULL_STRING_P 5318 regex.cpp            if (!REG_MATCH_NULL_STRING_P (reg_info[*p1]))