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Well, I feel like an idiot.

Had this guy:


*(op_file+i)

in a debug message right after the code I posted.

Sorry.

Hi all,

I have this piece of code that causes segmentation fault:


.... check argv[2] exists ....

std::string* op_file;
...
std::cout << "argv[2] is: " << argv[2] << std::endl;

Oh, I see.
Thanks.

Yes, yes, in fact I did think so! I guess I should go over pointers and arrays again.

Thanks a lot.

Hi All,

I have an array of char pointers:

char *input_args[MAX_ARGS];

and I have this function:

BOOL parseArgs(char **input_args[], input arg_num);

Hi All,

I am still trying to write a custom shell and I want to handle SIGINT and SIGTSTP, so I assigned them handlers (like it is customary for my people):



signal(SIGINT, sigint_handler);...

OK, thanks a lot everyone. You helped me a lot with this!

OK kmdv I came here to ask for advice and not to argue with you about my knowledge in the theory of compilation ( though I did get 98 in that course :D ).
In case you don't know in bison it is...

kmdv I do know what a parser is, and I have built compilers before in c using flex & bison. This time I decided to write it manually in c++ so I could improve my c++ skills.
Why do you think I am...

kmdv if I understand you correctly you are suggesting to use something like this:



class token{
private:
...
token_type type;

int line_number;

KMDV I am afraid that I don't quite understand what you mean.

What do you mean ?

I think it will be a little difficult to solve mathematical expressions at such early stage if I keep the...

I see. I think all things considered I will stick with early mathematical expression reduction in this case.

Thanks for your replays.

I see what you mean, my initial thought was writing a class Lex that will get an input string and will produce tokens. The token_value can be a string or a number so that Lex can produce...

Thanks for all your replies, I changed it to something like that:



template<class T>
class token{
private:
...
token_type type;

Hi, all

This is a coding conventions question. I am working on a lexical analyzer and I have something like this:



class token{
private:
...
token_type type;