Question about a command..

[genyue]

Hi,

For example, to run the complied program, I have to type 'compo'
through MS-DOS. My question - how can I write a code when typing 'compo
C:\text.txt' to create a text document (.txt) file, considering the
..txt file as "made.txt", with the word 'C:\text.txt' on the first line
of the "made.txt" file?

[msalters]

Re: Question about a command..



genyue schreef:[color=blue]
> Hi,
>
> For example, to run the complied program, I have to type 'compo'
> through MS-DOS. My question - how can I write a code when typing 'compo
> C:\text.txt' to create a text document (.txt) file, considering the
> .txt file as "made.txt", with the word 'C:\text.txt' on the first line
> of the "made.txt" file?[/color]

The first step you need is to get the command line arguments. They're
passed to main, but in asomewhat inconvenient form. So use this:

#include <vector>
#include <string>
int main( int argc, char** argv ) {
std::vector<std ::strings> args (argv, argv+argc);
// you now have args[0] ... args[args.size()-1]
}

HTH,
Michiel Salters

[Alan Johnson]

Re: Question about a command..

msalters wrote:[color=blue]
>
> genyue schreef:
>[color=green]
>>Hi,
>>
>>For example, to run the complied program, I have to type 'compo'
>>through MS-DOS. My question - how can I write a code when typing 'compo
>>C:\text.txt ' to create a text document (.txt) file, considering the
>>.txt file as "made.txt", with the word 'C:\text.txt' on the first line
>>of the "made.txt" file?[/color]
>
>
> The first step you need is to get the command line arguments. They're
> passed to main, but in asomewhat inconvenient form. So use this:
>
> #include <vector>
> #include <string>
> int main( int argc, char** argv ) {
> std::vector<std ::strings> args (argv, argv+argc);
> // you now have args[0] ... args[args.size()-1]
> }
>
> HTH,
> Michiel Salters
>[/color]

Nitpick correction:
std::vector<std ::string> args (argv, argv+argc);
(original had an extra 's' character)

-Alan

[Rapscallion]

Re: Question about a command..

Alan Johnson wrote:[color=blue]
> std::vector<std ::string> args (argv, argv+argc);
> (original had an extra 's' character)[/color]

Doesn't work anyway.

[red floyd]

Re: Question about a command..

Rapscallion wrote:[color=blue]
> Alan Johnson wrote:
>[color=green]
>>std::vector<s td::string> args (argv, argv+argc);
>>(original had an extra 's' character)[/color]
>
>
> Doesn't work anyway.
>[/color]
BS. Have you tried it? It works fine on any standard compliant compiler.

[Alan Johnson]

Re: Question about a command..

Rapscallion wrote:[color=blue]
> Alan Johnson wrote:
>[color=green]
>>std::vector<s td::string> args (argv, argv+argc);
>>(original had an extra 's' character)[/color]
>
>
> Doesn't work anyway.
>[/color]

It does rely on your compiler supporting "member templates", but those
have been part of C++ for something like 7 years now.