On Wed, Jan 03, 2007 at 08:46:28AM -0800, Marc Perkel wrote: > > David Saez Padros wrote: > > ... you are doing something wrong, only numbers should be > > comprable with numbers. ... If the string to compare is not a number > > (including an empty string) this is an error ...
FWIW I concur with that. Performing numeric operations on non-numeric operands is an error, and should be detected and stopped ASAP. > A null and a blank string are not the same thing either. Are you going > to treat strings that way too? Not a fair comparison IMO, because although variables can be null, the result of string expansion can (AFAIK) never be null. (e.g. h_Cc may be null, but expanding $h_Cc: yields the empty string). Since the operands of string ops (e.g. eq) are always acquired by first performing a string expansion, which can *only* yield a (possibly empty) string, the operands can never be anything but strings. Unless I've missed something. -- Dave Evans Power Internet http://www.powernet.co.uk/~davide/about-powernet.txt
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