Scanf and wildcard

[raphfrk]

I have a string that I want to extract some fields out of.

For example

ZABDE10FGH20
ZFDSF11FGG21
(etc)

I might want to extract the 2 sets of numbers.

One option would be to use throwaway buffers.

char buffer1[6];
int num1;
char buffer[4];
int num2;

and then use

fscanf( fp , "%5s%2d%3s%d" , buffer1, num1 , buffer2, num2 );

Is there a better way to get scanf to skip lines other than having it
write them to an unused buffer ?

[vippstar]

On Sep 6, 10:36 pm, [e-mail] wrote:

<snip>

Is there a better way to get scanf to skip lines other than having it
write them to an unused buffer ?

you can discard the matched result by using `*'.
Ie:
scanf("%*s%s", buf);

with input:
hello world

would read `world' into the buffer.

[raphfrk]

On Sep 6, 8:57 pm, [e-mail] wrote:

On Sep 6, 10:36 pm, [e-mail] wrote:

<snip>

Is there a better way to get scanf to skip lines other than having it
write them to an unused buffer ?

you can discard the matched result by using `*'.
Ie:
scanf("%*s%s", buf);

with input:
hello world

would read `world' into the buffer.

Thanks

[Andrew Poelstra]

On 2008-09-06, vi******@gmail.com <vi******@gmail.comwrote:

On Sep 6, 10:36 pm, [e-mail] wrote:

<snip>

>Is there a better way to get scanf to skip lines other than having it
write them to an unused buffer ?

you can discard the matched result by using `*'.
Ie:
scanf("%*s%s", buf);

with input:
hello world

would read `world' into the buffer.

Yikes! scanf("%s") should not be used without a length qualifier,
otherwise it is effectively gets().

--
Andrew Poelstra ap*******@wpsoftware.com
To email me, use the above email addresss with .com set to .net

[vippstar]

On Sep 6, 11:35 pm, Andrew Poelstra <[e-mail]:

On 2008-09-06, [e-mail] <[e-mail]:

On Sep 6, 10:36 pm, [e-mail] wrote:

<snip>

Is there a better way to get scanf to skip lines other than having it
write them to an unused buffer ?

you can discard the matched result by using `*'.
Ie:
scanf("%*s%s", buf);

with input:
hello world

would read `world' into the buffer.

Yikes! scanf("%s") should not be used without a length qualifier,
otherwise it is effectively gets().

Don't worry. buf is long enough

[Richard Heathfield]

vi******@gmail.com said:

On Sep 6, 11:35 pm, Andrew Poelstra <[e-mail]:

<snip>

>Yikes! scanf("%s") should not be used without a length qualifier,
otherwise it is effectively gets().

Don't worry. buf is long enough

I trust you mean that as a joke?

--
Richard Heathfield <http://www.cpax.org.uk>
Email: -http://www. +rjh@
Google users: <http://www.cpax.org.uk/prg/writings/googly.php>
"Usenet is a strange place" - dmr 29 July 1999

[CBFalconer]

vi******@gmail.com wrote:

Andrew Poelstra <[e-mail]:

.... snip ...

>

>Yikes! scanf("%s") should not be used without a length qualifier,
otherwise it is effectively gets().

Don't worry. buf is long enough

How did you manage to define an infinitely large buf?

--
[mail]: Chuck F (cbfalconer at maineline dot net)
[page]: <http://cbfalconer.home.att.net>
Try the download section.

[vippstar]

On Sep 7, 10:38 am, Richard Heathfield <[e-mail]:

[e-mail] said:

On Sep 6, 11:35 pm, Andrew Poelstra <[e-mail]:

<snip>

Yikes! scanf("%s") should not be used without a length qualifier,
otherwise it is effectively gets().

Don't worry. buf is long enough

I trust you mean that as a joke?

Yes, I guess a smiley was missing. ;-)

[Obnoxious User]

On Sun, 07 Sep 2008 00:26:06 -0700, vippstar wrote:

On Sep 6, 11:35 pm, Andrew Poelstra <[e-mail]:

>On 2008-09-06, [e-mail] <[e-mail]:

On Sep 6, 10:36 pm, [e-mail] wrote:

><snip>

>Is there a better way to get scanf to skip lines other than having
it write them to an unused buffer ?

you can discard the matched result by using `*'. Ie:
scanf("%*s%s", buf);

with input:
hello world

would read `world' into the buffer.

Yikes! scanf("%s") should not be used without a length qualifier,
otherwise it is effectively gets().

Don't worry. buf is long enough

That's just hilarious :) Fancy reading that
excuse as a comment in some core system.

--
OU