HOMEDIR, USERNAME, COMPUTER variables...

[HardHackz]

Are there any variables like %HOMEDIR%, %USERNAME%, etc. that batch
has for C++?

[Lionel B]

On Thu, 01 Mar 2007 04:44:12 -0800, HardHackz wrote:

Are there any variables like %HOMEDIR%, %USERNAME%, etc. that batch
has for C++?

No. That's all system-dependent. C++ doesn't assume that things like
"user" or "directory" even exist (although it does have a notion of
"file"). Think about it: a microchip controlling your fridge might be
programmed in C++...

--
Lionel B

[Victor Bazarov]

Lionel B wrote:

On Thu, 01 Mar 2007 04:44:12 -0800, HardHackz wrote:

>Are there any variables like %HOMEDIR%, %USERNAME%, etc. that batch
has for C++?

No. That's all system-dependent. C++ doesn't assume that things like
"user" or "directory" even exist (although it does have a notion of
"file"). Think about it: a microchip controlling your fridge might be
programmed in C++...

Not sure what is meant by 'variables like batch has', but if those
are "environment" variables, see 'getenv' function.

V
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[Marcus Kwok]

Victor Bazarov <v.********@comacast.netwrote:

Lionel B wrote:

>On Thu, 01 Mar 2007 04:44:12 -0800, HardHackz wrote:

>>Are there any variables like %HOMEDIR%, %USERNAME%, etc. that batch
has for C++?

No. That's all system-dependent. C++ doesn't assume that things like
"user" or "directory" even exist (although it does have a notion of
"file"). Think about it: a microchip controlling your fridge might be
programmed in C++...

Not sure what is meant by 'variables like batch has', but if those
are "environment" variables, see 'getenv' function.

Also, your implementation may provide a signature for main() like:

int main(int argc, char* argv[], char* envp[])

where envp is an array of C-style strings representing the current
environment.

See if this works on your implementation:
#include <iostream>

int main(int argc, char* argv[], char* envp[])
{
using std::cout;

for (int i = 0; envp[i] != 0; ++i) {
cout << envp[i] << '\n';
}

return 0;
}

--
Marcus Kwok
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