atoi() check

["Deshpande Bansidhar(IFIN DC AI)" <Bansidhar.Deshpande@infineon.com>]

Hi all

I have following code.
I want to add error handler for atoi() function.

E.g. 

char *ch;
int num;

/*Read ch here*/

Num = atoi(ch);

But before calling atoi I want to make sure that ch is pointing to numberic
string. 
How should I do this. I can manually write some function to check this. But
is there
Any library function inbuilt to achieve the same ? 

Thanks & regards,
Bansidhar A. Deshpande
Software Engineer 
Infineon Technologies India Pvt. Ltd. 
Discoverer Building. 
I.T.P.L., White Field Road, 
Bangalore -560066 
Phone: +91-80-51392011   Extn : 2066
Fax: +91-80-8410012


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