I have made the following code;
#include <stdio.h>
main(){
int c, i, nwhite, nother;
int ndigit[10];
nwhite = nother = 0;
for (i = 0; i < 10; ++i)
ndigit[i] = 0;
while ((c = getchar()) != EOF)
if (c >= '0' && c <= '9')
++ndigit[c-'0'];
else
if (c == ' ' || c == '\n' || c == '\t')
++nwhite;
else
++nother;
printf("digits =");
for (i = 0; i < 10; ++i)
printf(" %d", ndigit[i]);
printf(", white space = %d, other = %d\n",
nwhite, nother);
}
It compiles ok and I also get an .exe file. But when I doubleclick on the
..exe file from WinXP explorer a black box appears and I can enter som text,
press enter and then nothing happens...the black box does not disappear
before I chose to close it.
I use the Cygwin compiler bcause I need my code to be run on a Linux system.
Hope somone can help
JS 7 1409
On Mon, 14 Mar 2005 22:42:23 +0100, JS said to the parser: I have made the following code; ... main(){
main should really properly return an int:
int main(void){
.... which will also necessitate adding:
return 0;
just before the closing brace.
It compiles ok and I also get an .exe file. But when I doubleclick on the .exe file from WinXP explorer a black box appears and I can enter som text, press enter and then nothing happens...the black box does not disappear before I chose to close it.
What do you expect? You've got a while loop that doesn't end until it
sees an EOF...
Type in some text, press enter a few times, and then trying sending an EOF
(typically CTRL-D).
Your program should spit out the results as expected.
Michael
"Michael Coyne" <co*****@mtsDOT.net> skrev i en meddelelse
news:pa****************************@mtsDOT.net... On Mon, 14 Mar 2005 22:42:23 +0100, JS said to the parser:
I have made the following code; ... main(){
main should really properly return an int: int main(void){
... which will also necessitate adding: return 0;
just before the closing brace.
It compiles ok and I also get an .exe file. But when I doubleclick on
the .exe file from WinXP explorer a black box appears and I can enter som text, press enter and then nothing happens...the black box does not disappear before I chose to close it.
What do you expect? You've got a while loop that doesn't end until it sees an EOF...
Type in some text, press enter a few times, and then trying sending an EOF (typically CTRL-D).
Your program should spit out the results as expected.
I have tried to enter a few numbers and some text but when I press CTRL-D
the window just closes!
On Mon, 14 Mar 2005 16:15:41 -0600, Michael Coyne said to the parser: On Mon, 14 Mar 2005 22:42:23 +0100, JS said to the parser:
It compiles ok and I also get an .exe file. But when I doubleclick on the .exe file from WinXP explorer a black box appears and I can enter som text, press enter and then nothing happens...the black box does not disappear before I chose to close it. ... Type in some text, press enter a few times, and then trying sending an EOF (typically CTRL-D).
Your program should spit out the results as expected.
<OT>
I should also have added that, if you're running this by double-clicking
on it in the Explorer, most likely the minute you hit CTRL-D, the program
will spit out the results and the window will promptly close.
Open up a command prompt, navigate to the proper directory, and then run
the program by typing its name on the command line.
</OT>
Michael
"Michael Coyne" <co*****@mtsDOT.net> skrev i en meddelelse
news:pa****************************@mtsDOT.net... On Mon, 14 Mar 2005 16:15:41 -0600, Michael Coyne said to the parser:
On Mon, 14 Mar 2005 22:42:23 +0100, JS said to the parser:
It compiles ok and I also get an .exe file. But when I doubleclick on the .exe file from WinXP explorer a black box appears and I can enter som text, press enter and then nothing happens...the black box does not disappear before I chose to close it. ... Type in some text, press enter a few times, and then trying sending an
EOF (typically CTRL-D).
Your program should spit out the results as expected.
<OT> I should also have added that, if you're running this by double-clicking on it in the Explorer, most likely the minute you hit CTRL-D, the program will spit out the results and the window will promptly close.
Open up a command prompt, navigate to the proper directory, and then run the program by typing its name on the command line. </OT>
I works if I press CTRL+Z instead! Can someone explain the difference
between CTRL+D and CTRL+Z?
Michael Coyne <co*****@mtsDOT.net> writes: On Mon, 14 Mar 2005 22:42:23 +0100, JS said to the parser:
[...] It compiles ok and I also get an .exe file. But when I doubleclick on the .exe file from WinXP explorer a black box appears and I can enter som text, press enter and then nothing happens...the black box does not disappear before I chose to close it.
What do you expect? You've got a while loop that doesn't end until it sees an EOF...
Type in some text, press enter a few times, and then trying sending an EOF (typically CTRL-D).
Your program should spit out the results as expected.
<OT>
If he runs it by double-clicking from a WinXP explorer window, it will
expect control-Z to mark EOF. Once it gets an EOF, the box will close
before he can read the output. He can try running from a command
prompt (MS-DOS window) or from a Cygwin shell (bash, tcsh, whatever).
</OT>
--
Keith Thompson (The_Other_Keith) ks***@mib.org <http://www.ghoti.net/~kst>
San Diego Supercomputer Center <*> <http://users.sdsc.edu/~kst>
We must do something. This is something. Therefore, we must do this.
"Keith Thompson" <ks***@mib.org> skrev i en meddelelse
news:ln************@nuthaus.mib.org... Michael Coyne <co*****@mtsDOT.net> writes: On Mon, 14 Mar 2005 22:42:23 +0100, JS said to the parser: [...] It compiles ok and I also get an .exe file. But when I doubleclick on
the .exe file from WinXP explorer a black box appears and I can enter som text, press enter and then nothing happens...the black box does not disappear before I chose to close it.
What do you expect? You've got a while loop that doesn't end until it sees an EOF...
Type in some text, press enter a few times, and then trying sending an
EOF (typically CTRL-D).
Your program should spit out the results as expected.
<OT> If he runs it by double-clicking from a WinXP explorer window, it will expect control-Z to mark EOF. Once it gets an EOF, the box will close before he can read the output. He can try running from a command prompt (MS-DOS window) or from a Cygwin shell (bash, tcsh, whatever). </OT>
I found out that I needed to press CTRL+Z, but what is EOF. I know it means
End Of File but is it some specific integer??
JS wrote: "Keith Thompson" <ks***@mib.org> skrev i en meddelelse news:ln************@nuthaus.mib.org...
Michael Coyne <co*****@mtsDOT.net> writes:
On Mon, 14 Mar 2005 22:42:23 +0100, JS said to the parser:
[...]
It compiles ok and I also get an .exe file. But when I doubleclick on the .exe file from WinXP explorer a black box appears and I can enter som text, press enter and then nothing happens...the black box does not disappear before I chose to close it.
What do you expect? You've got a while loop that doesn't end until it sees an EOF...
Type in some text, press enter a few times, and then trying sending an EOF (typically CTRL-D).
Your program should spit out the results as expected.
<OT> If he runs it by double-clicking from a WinXP explorer window, it will expect control-Z to mark EOF. Once it gets an EOF, the box will close before he can read the output. He can try running from a command prompt (MS-DOS window) or from a Cygwin shell (bash, tcsh, whatever). </OT>
I found out that I needed to press CTRL+Z, but what is EOF. I know it means End Of File but is it some specific integer??
EOF is a negative int value defined in <stdio.h>.
Many input functions return EOF if the end-of-file has been
encountered; you can "send" an end-of-file for stdin for example
with CTRL+D on Unix systems and with CTRL+Z on Windows/MS-DOS systems.
Cheers
Michael
--
E-Mail: Mine is an /at/ gmx /dot/ de address. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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