Doeas any know the simplest way for create this type of function:
bool result = IsDigit(string s);
Sam
16  7225 
Hi, sk*****@gmail.com schrieb:
Doeas any know the simplest way for create this type of function:
bool result = IsDigit(string s);
Sam
do you mean digit like '0', '1', .. '9', which is a (or better nine)
simple equal operations, or number? If, which numbers? int, double?
Sounds like homework ;)
Tobi
You can use int.TryParse or check that each character in the strign is
a digit:
foreach(char c in string s)
if !char.IsDigit(c)
return false
return true;
Calum.
On Jan 11, 1:09 pm, skne...@gmail.com wrote:
Doeas any know the simplest way for create this type of function:
bool result = IsDigit(string s);
Sam
sk*****@gmail.com wrote:
Doeas any know the simplest way for create this type of function:
bool result = IsDigit(string s);
Use a regular expression. Something simple like "[0-9]+" should work.
Chris.
Do you mean:
if(!char.IsDigit(c)) return false;
[which might actually answer the OP on its own]
Marc
Hello Chris, sk*****@gmail.com wrote:
>Doeas any know the simplest way for create this type of function:
bool result = IsDigit(string s);
Use a regular expression. Something simple like "[0-9]+" should work.
Chris.
int val = 0;
return int.TryParse(stringInput, NumberStyles.Integer, val);
should work (though I don't have intellisense in my newsreader ;)) and should
be much faster than a regex.
--
Jesse Houwing
jesse.houwing at sogeti.nl
Hi,
What about :
bool MyIsDigit(string s)
{
return IsDigit(s);
}
:-)
--
Ignacio Machin http://www.laceupsolutions.com
Mobile & warehouse Solutions.
<sk*****@gmail.comwrote in message
news:c6**********************************@n20g2000 hsh.googlegroups.com...
Doeas any know the simplest way for create this type of function:
bool result = IsDigit(string s);
Sam
<sk*****@gmail.comwrote in message
news:c6**********************************@n20g2000 hsh.googlegroups.com...
Doeas any know the simplest way for create this type of function:
bool result = IsDigit(string s);
Sam
Sounds like 101 lesson 1.
We should not do your homework for you.
If this is a problem for you, you really need 'Programming for Dummies'
- Michael Starberg
On 11 jan, 14:22, Chris Shepherd <c...@nospam.chsh.cawrote:
Use a regular expression. Something simple like "[0-9]+" should work.
Very good suggestion !
Thanks a lot for all.
Sam
On Fri, 11 Jan 2008 08:22:19 -0500, Chris Shepherd
<ch**@nospam.chsh.cawrote:
>sk*****@gmail.com wrote:
>Doeas any know the simplest way for create this type of function:
bool result = IsDigit(string s);
Use a regular expression. Something simple like "[0-9]+" should work.
Chris.
<mode="pedant">
That does not work for all languages using non-Roman alphabets. For
example Arabic (?????), Unicode U+0660 on, or devanagari (?????),
Unicode U+0966 on, have their own sets of digits. The question is not
specified sufficiently clearly to determine if your answer is
sufficient or not.
</mode>
rossum
"rossum" <ro******@coldmail.comwrote in message
news:sj********************************@4ax.com...
<mode="pedant" />
LOL
rossum wrote:
<mode="pedant">
That does not work for all languages using non-Roman alphabets. For
example Arabic (?????), Unicode U+0660 on, or devanagari (?????),
Unicode U+0966 on, have their own sets of digits. The question is not
specified sufficiently clearly to determine if your answer is
sufficient or not.
</mode>
LOL@<mode="pedant" />, but I hardly call that being pedantic. It's very true, if
the OP is parsing non-Arabic numbering, it will be an issue.
Chris.
"Chris Shepherd" <ch**@nospam.chsh.cawrote in message
news:%2****************@TK2MSFTNGP06.phx.gbl...
rossum wrote:
><mode="pedant">
That does not work for all languages using non-Roman alphabets. For
example Arabic (?????), Unicode U+0660 on, or devanagari (?????),
Unicode U+0966 on, have their own sets of digits. The question is not
specified sufficiently clearly to determine if your answer is
sufficient or not.
</mode>
LOL@<mode="pedant" />, but I hardly call that being pedantic. It's very
true, if the OP is parsing non-Arabic numbering, it will be an issue.
Chris.
I am not sure what you laughed about, but for me it was the non-valid xml.
<element attribute="value" />
Rossum is a sloppy pedant =)
- Michael Starberg
On Fri, 11 Jan 2008 12:34:31 -0800, Michael Starberg
<mi***************************@gmail.comwrote:
I am not sure what you laughed about, but for me it was the non-valid
xml.
How do you know it was supposed to be XML?
Maybe he's just using a markup that happens to be similar to XML, but
which has its own rules. For all you know, the markup he used could be
perfectly valid when interpreted correctly.
"Peter Duniho" <Np*********@nnowslpianmk.comwrote in message
news:op***************@petes-computer.local...
On Fri, 11 Jan 2008 12:34:31 -0800, Michael Starberg
<mi***************************@gmail.comwrote:
>I am not sure what you laughed about, but for me it was the non-valid
xml.
How do you know it was supposed to be XML?
Maybe he's just using a markup that happens to be similar to XML, but
which has its own rules. For all you know, the markup he used could be
perfectly valid when interpreted correctly.
Maybe...
On 12 Jan, 06:11, "Michael Starberg" <michael.spam-
captcha.starb...@gmail.comwrote:
"Peter Duniho" <NpOeStPe...@nnowslpianmk.comwrote in message
news:op***************@petes-computer.local...
On Fri, 11 Jan 2008 12:34:31 -0800, Michael Starberg
<michael.spam-captcha.starb...@gmail.comwrote:
I am not sure what you laughed about, but for me it was the non-valid
xml.
How do you know it was supposed to be XML?
Maybe he's just using a markup that happens to be similar to XML, but
which has its own rules. *For all you know, the markup he used could be
perfectly valid when interpreted correctly.
Maybe...
Oh, yeah.. I love the way thease threads go sometimes..
//CY
rossum wrote:
On Fri, 11 Jan 2008 08:22:19 -0500, Chris Shepherd
<ch**@nospam.chsh.cawrote:
>sk*****@gmail.com wrote:
>>Doeas any know the simplest way for create this type of function:
bool result = IsDigit(string s);
Use a regular expression. Something simple like "[0-9]+" should work.
Chris.
<mode="pedant">
That does not work for all languages using non-Roman alphabets. For
example Arabic (?????), Unicode U+0660 on, or devanagari (?????),
Unicode U+0966 on, have their own sets of digits. The question is not
specified sufficiently clearly to determine if your answer is
sufficient or not.
</mode>
rossum
Additionally, a "digit" is one digit, not a sequence of them, that's a
number.
I'd say the OP is either looking for a homework answer, or he's looking
for Int32.TryParse.
--
Lasse Vågsæther Karlsen
mailto:la***@vkarlsen.no http://presentationmode.blogspot.com/
PGP KeyID: 0xBCDEA2E3 This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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