889   while (*s++ != CHAR_NULL) {};  in find_error_text()
890   if (*s == CHAR_NULL) return "Error text not found (please report)";  in find_error_text()
1010 if (c == CHAR_NULL) *errorcodeptr = ERR1;  in check_escape()
1121       for (p = ptr+2; *p != CHAR_NULL && *p != CHAR_RIGHT_CURLY_BRACKET; p++)  in check_escape()
1123       if (*p != CHAR_NULL && *p != CHAR_RIGHT_CURLY_BRACKET)  in check_escape()
1413     if (c == CHAR_NULL)  in check_escape()
1501 if (c == CHAR_NULL) goto ERROR_RETURN;  in get_ucp()
1518     if (c == CHAR_NULL) goto ERROR_RETURN;  in get_ucp()
3869 for (++ptr; *ptr != CHAR_NULL; ptr++)  in check_posix_syntax()
4506   if (c == CHAR_NULL && nestptr != NULL)  in compile_branch()
4581   if (inescq && c != CHAR_NULL)  in compile_branch()
4617       while (*ptr != CHAR_NULL)  in compile_branch()
4664     case CHAR_NULL:                /* The branch terminates at string end */  in compile_branch()
4854     if (c != CHAR_NULL) do  in compile_branch()
5225         if (*ptr == CHAR_NULL || (!inescq && *ptr == CHAR_RIGHT_SQUARE_BRACKET))  in compile_branch()
5397     while (((c = *(++ptr)) != CHAR_NULL ||  in compile_branch()
5399              (ptr = nestptr, nestptr = NULL, c = *(++ptr)) != CHAR_NULL)) &&  in compile_branch()
5404     if (c == CHAR_NULL)  in compile_branch()
5557         while (*p != CHAR_NULL)  in compile_branch()
6452         while (*ptr != CHAR_NULL && *ptr != CHAR_RIGHT_PARENTHESIS) ptr++;  in compile_branch()
6566         while (*ptr != CHAR_NULL && *ptr != CHAR_RIGHT_PARENTHESIS) ptr++;  in compile_branch()
6567         if (*ptr == CHAR_NULL)  in compile_branch()
6662           terminator = CHAR_NULL;  in compile_branch()
6787         else if (terminator != CHAR_NULL)  in compile_branch()
9228 if (errorcode == 0 && *ptr != CHAR_NULL) errorcode = ERR22;  in pcre_compile2()