899   while (*s++ != CHAR_NULL) {};  in find_error_text()
900   if (*s == CHAR_NULL) return "Error text not found (please report)";  in find_error_text()
1020 if (c == CHAR_NULL) *errorcodeptr = ERR1;  in check_escape()
1131       for (p = ptr+2; *p != CHAR_NULL && *p != CHAR_RIGHT_CURLY_BRACKET; p++)  in check_escape()
1133       if (*p != CHAR_NULL && *p != CHAR_RIGHT_CURLY_BRACKET)  in check_escape()
1423     if (c == CHAR_NULL)  in check_escape()
1520 if (c == CHAR_NULL) goto ERROR_RETURN;  in get_ucp()
1537     if (c == CHAR_NULL) goto ERROR_RETURN;  in get_ucp()
3937 for (++ptr; *ptr != CHAR_NULL; ptr++)  in check_posix_syntax()
4576   if (c == CHAR_NULL && nestptr != NULL)  in compile_branch()
4650   if (inescq && c != CHAR_NULL)  in compile_branch()
4686       while (*ptr != CHAR_NULL)  in compile_branch()
4733     case CHAR_NULL:                /* The branch terminates at string end */  in compile_branch()
4925     if (c != CHAR_NULL) do  in compile_branch()
5316         if (*ptr == CHAR_NULL || (!inescq && *ptr == CHAR_RIGHT_SQUARE_BRACKET))  in compile_branch()
5492     while (((c = *(++ptr)) != CHAR_NULL ||  in compile_branch()
5494              (ptr = nestptr, nestptr = NULL, c = *(++ptr)) != CHAR_NULL)) &&  in compile_branch()
5499     if (c == CHAR_NULL)  in compile_branch()
5659         while (*p != CHAR_NULL)  in compile_branch()
6538       while (*ptr != CHAR_NULL && *ptr != CHAR_RIGHT_PARENTHESIS) ptr++;  in compile_branch()
6539       if (*ptr == CHAR_NULL)  in compile_branch()
6569         while (*ptr != CHAR_NULL && *ptr != CHAR_RIGHT_PARENTHESIS) ptr++;  in compile_branch()
6790           terminator = CHAR_NULL;  in compile_branch()
6922         else if (terminator != CHAR_NULL)  in compile_branch()
9436 if (errorcode == 0 && *ptr != CHAR_NULL) errorcode = ERR22;  in pcre_compile2()