checking the validity of hex?

[namaskaaram]

given a string containing hex,is there any function that checks if teh given string holds a valid hex value? cheerz!

[Ryan Binns]

Not directly. It's fairly easy to write one though. Just check that there is nothing other than 0-9 or A-F in the string.

Ryan

"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"

[kakan]

AFAIK, there is no way to check a whole string for valid hexadecial values, but you can make a loop and check each character one by one. Have a look at one of the isxdigit functions.

[Blake Miller]

And a-f People that start writing code immediately are programmers (or hackers), people that ask questions first are Software Engineers - Graham Shanks

[Ryan Binns]

Blake Miller wrote:

And a-f

I assumed he had at least some level of intelligence...

Ryan

"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"

[Blake Miller]

Given the nature of the original question, I chose not to make any assumptions. We actually had production code similar to the following (greatly paraphrased)... // check for ascii characters... if( cChar > 'a' && cChar < 'z' ){ ... blah blah blah... } I suppose you can already see what is wrong with that, even if they were only looking for lower case characters... People that start writing code immediately are programmers (or hackers), people that ask questions first are Software Engineers - Graham Shanks