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g++ UNIX:  cin.get()   and  accessint day info

flood
flood asked
on
Medium Priority
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Last Modified: 2006-11-17
> Could anyone email me help on using cin.get() on a unix system w/ g++?

> cin.get() seems to still wait for a return character.  I would like to
> just grab one char (similar to how PINE needs only one control char to
> proceed).

> Our current project also requires the day-of-the-week.
> For example, If the user inputs "02/14/99" I need to know that that day
> is a Sunday.  I have thought of computing the information, but was
> wondering if I can access the system (UNIX) within a c++ program to tell
> me the day-of-week.

> Help is greatly appreciated.
> Please reply via email.                             -Brett
Comment
Watch Question

The way stdin is buffered is beyond the scope of control
of a C++ program, all you can do is set the terminal
driver to the appropriate mode. If you do something
like:

   system("stty raw");

begore calling cin.get(), your terminal will be set to a
non-canonical mode, i.e. no buffering is performed whatsoever.
After all reading is done, reset your terminal to cooked mode
again by calling:

   system("stty sane");

Note that this is a quick hack, there are faster (and better)
ways of doing this. Check your man pages for ioctl(),
termio() etc.

About the date stuff, check your man pages for mktime(),
gmtime() etc. They'll help you out ...

kind regards,

Jos aka jos@and.nl

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