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D - numeric literals

reply "Daniel Yokomiso" <daniel_yokomiso yahoo.com.br> writes:
Hi,

    I'm not finding in the documentation the correct syntax to write the
ifloat/cfloat literals. Also the compiler (dmd 0.59) keeps saying "toelem:
cannot cast from idouble to ifloat" even if I put explicit casts in it:
"ifloat f = cast(ifloat) 0i;". BTW what's the correct way to write numeric
literals of all kinds? I'm having some trouble with properties of
floating-point types (e.g. isnan or isinfinite). Are they implemented?
    It's late and I'm falling on the keyboard, maybe I'm just need some
sleep ;-)

    Best regards,
    Daniel Yokomiso.

"There are 10 kinds of people: those who understand binary and those who
don't."



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Mar 20 2003
next sibling parent "John Reimer" <jjreimer telus.net> writes:
"Daniel Yokomiso" <daniel_yokomiso yahoo.com.br> wrote in message
news:b5drq4$2g26$1 digitaldaemon.com...

 Hi,

     I'm not finding in the documentation the correct syntax to write the
 ifloat/cfloat literals. Also the compiler (dmd 0.59) keeps saying "toelem:
 cannot cast from idouble to ifloat" even if I put explicit casts in it:
 "ifloat f = cast(ifloat) 0i;". BTW what's the correct way to write numeric
 literals of all kinds? I'm having some trouble with properties of
 floating-point types (e.g. isnan or isinfinite). Are they implemented?
     It's late and I'm falling on the keyboard, maybe I'm just need some
 sleep ;-)


I asked a similar question earlier and got no answer.  My question was about
what consititued a legal complex expression.  At that time, I also was
attempting to use imaginary literals within a complex expression.  The
compiler either would bulk or compile away depending on which way I tried
getting around the problem.  If it did compile, my program ended up spitting
out  incorrect results. Casting didn't work for me either.  So I don't know,
maybe someone else can offer a suggestion...  But the way complex numbers
are now, I can't use them in D because they don't really work correctly. Oh
well.

All I can say is... I know what you're saying... :-P

Later,

John
Mar 20 2003
prev sibling parent "Walter" <walter digitalmars.com> writes:
"Daniel Yokomiso" <daniel_yokomiso yahoo.com.br> wrote in message
news:b5drq4$2g26$1 digitaldaemon.com...

     I'm not finding in the documentation the correct syntax to write the
 ifloat/cfloat literals. Also the compiler (dmd 0.59) keeps saying "toelem:
 cannot cast from idouble to ifloat" even if I put explicit casts in it:
 "ifloat f = cast(ifloat) 0i;".


I need to fix that.


 BTW what's the correct way to write numeric
 literals of all kinds? I'm having some trouble with properties of
 floating-point types (e.g. isnan or isinfinite). Are they implemented?


math.isnan is implemented, so is math.isinf. isinfinite isn't.
Mar 21 2003