about getchar()

captainstorm · 10-10-2003, 06:56 AM

Hello all. Good morning.

The getchar() function always treat the "return" as one character and I have to use 2 getchar() everytime to eliminate the redundent "return". For example,

m_value = getchar();
getchar(); // this one is to mask the redundent "return" character.

Anybody knows if there is a way to result an "instant" character get and I do not need to push the "enter" button after typing the character?

Thank you very much.

lehrig · 10-10-2003, 07:06 AM

This is done with:
getch()

For more see:
man getch

Xiangbuilder · 10-10-2003, 07:08 AM

How about string, or character array?

Mohsen · 10-10-2003, 07:32 AM

As many times answered (even once to me) in this forum, there's a NCurses function `getch()' like the one in Borland C++. You can see Similar Threads below.

Quote:

How about string, or character array?

If you mean how to read them the answer is gets() or `scanf("%s")' in C , and `cin >> myStr' in C++.

captainstorm · 10-10-2003, 08:56 AM

thank you lehrig and Mohsen, but when I use cbreak() or halfdelay(int) in the program, I always get a "segment fault (core dumped)" error when calling either of these funtion.
But without initialization, the program is in nodelay mode and I could not type anything before the getch() returns.

How can I solve this problem?

Hko · 10-10-2003, 10:34 AM

Does this help?
http://www.linuxquestions.org/questi...hreadid=102330

Mohsen · 10-11-2003, 05:14 AM

The Segmentation Violation can be because you should always call initscr() at the beginning og a NCurses program, and if not there would be SIGSEGV