Not a number check in Informix 4gl

Any in built function in Informix 4gl prog language to check whether a particular i/p is numeric or not.

If you're just trying to check number if it is valid (integer or real), you can assign string value to numeric variable and check if it is null afterwards. Of course, you must have WHENEVER ERROR CONTINUE clause before that in your program. For checking IP addresses, you'll have to use C (or C++) language code and call it from your 4GL program. "Suket" <suketsinha@indiatimes.com> wrote in message news:b30fd489.0309220227.599561ab@posting.google.com... > Any in built function in Informix 4gl prog language to check whether a > particular i/p is numeric or not.