ENVIRONMENT VARIABLES GETENV etc 1

[harshcseiitb]

what is the use of getenv and setenv subroutines
can i create parallel processes via them or there is some another way
i don't have a FM compiler

plz help me out its very urgent

 

[xwb]

Don't really know what OS/Compiler you are using.

Getenv and setenv normally set the environment variables. The implementation varies depending on the OS you are using. On DOS, it actually changes the variable. On Unix, it creates another shell and changes them within that shell so your original shell remains the same. There is a way of getting it to change in the current shell too. I don't know about windows.

They can't be used for creating parallel processes.