Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!xanth!mcnc!rti!sunpix!matthew
From: matthew@sunpix.UUCP ( Sun NCAA)
Newsgroups: comp.lang.c
Subject: Re: learning c
Keywords: getchar()
Message-ID: <584@greens.UUCP>
Date: 3 Apr 89 15:46:10 GMT
References: <1091@bnlux0.bnl.gov>
Distribution: usa
Organization: Sun Microsystems, Research Triangle Park, NC
Lines: 52

In article <1091@bnlux0.bnl.gov>, baron@bnlux0.bnl.gov (ed baron) writes:
} Maybe this isn't the best place to post this but it seemed reasonable.
} 
} I am trying to learn c out of a book that seems to be wrong on many
} things, but anyway i can't seem to figure out how getchar() should
} work. consider the following
} 
} char name [10];
} int c;
} 
} for(;;)
} {
} puts("enter 9 to exit");
} c = getchar();
} if(c == 9)
} break;
} puts("enter name: ");
} gets(name);
} .
} .
} .
} }
} 
} now getchar gets one character but not until it sees the terminator
} (carriage return) but since it only gets one character and the
} carriage return is one character if you enter 1<cr> say
} the <cr> is passed to the next thing seeking input and so now
} name is just <cr> i.e there is no opportunity to respond to the naame
} prompt. then i tried using gets(c) in place of getchar c (andd
} declaring c to be char) but that won't compile. what is the proper
} way to do this? please respond via mail. thanks.
} 
} ed baron (baron@bnlux0.bnl.gov, baron@bnlux0.bitnet)


    I know your problem well.  What you are looking for is a 'getch()' or
'getche()' function in place of the 'getchar()' function.  Barring that try

c = getchar();
fflush(stdin);

    The variable 'c' will get the first character of input, and the remainder
of the line (plus the newline) will get flushed away.




-- 
Matthew Lee Stier                         |
Sun Microsystems ---  RTP, NC  27709-3447 |        "Wisconsin   Escapee"
uucp: { sun, mcnc!rti }!sunpix!matthew    |
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