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Re: eq vs. ==

by Abigail-II (Bishop)
on Jul 21, 2003 at 11:01 UTC ( #276215=note: print w/ replies, xml ) Need Help??

in reply to Re: Re: Re: eq vs. ==
in thread eq vs. ==

In Pascal (at least in the version as intended by Go^H^HWirth), you are not very likely to make that mistake. Pascal uses = to compare two values, and := for assignment. So, you'd have to type an extra character (instead of leaving one off) to make this mistake, but even if you do:

if a := b then begin ... end
is a compile time error. Not really a problem. In Perl using assignment instead of comparison in a condition leads to a compile time warning. However, in C, the use of assignment instead of comparison is just find, and only some compilers will warn, if you turn on the appriate warnings. But when compiling C, it's much more common (and troublesome) to turn warnings on than in Perl.

Conclusing, when coding in Perl, and certainly in C, is more likely to make this mistake than when coding in Pascal.


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Re: Re: eq vs. ==
by Jenda (Abbot) on Jul 21, 2003 at 11:05 UTC

    I did not say (or at least did not mean to say) that it's more likely to make such mistake in Pascal than in Perl. What I meant was that if you use both Perl and Pascal, it's more likely you'll make this mistake in Perl.

    Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live.
       -- Rick Osborne

    Edit by castaway: Closed small tag in signature

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