String check

[pandit84]

HI , How to check whether a string does not contain any data other that 'A' - 'Z' or '0' - '9' is there any API available

[_Superman_]

You could use CString::SpanExcluding if you're using MFC. Otherwise use the strcspn function.

«_Superman_» I love work. It gives me something to do between weekends.

[Nibu babu thomas]

pandit84 wrote:

How to check whether a string does not contain any data other that 'A' - 'Z' or '0' - '9'

You can use _istalnum, _isalnum function...

bool IsValidAlNumStr( LPCTSTR lpctszStr )
{
while( *lpctszStr )
{
if( !_istalnum(*lpctszStr ))
return false;

 ++lpctszStr;

}

return true;
}

Nibu babu thomas Microsoft MVP for VC++ Code must be written to be read, not by the compiler, but by another human being. Programming Blog: http://nibuthomas.wordpress.com