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digitalmars.D - float.min, double.min, int.min

reply Andrea Fontana <advmail katamail.com> writes:
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dmd 2.056.

void main(string[] args)
{
  writeln("int.max: ", int.max);
  writeln("int.min: ", int.min);
  writeln("float.max: ", float.max);
  writeln("float.min: ", float.min);
}

it prints:
int.max: 2147483647      <-- no int >  int.max
int.min: -2147483648      <-- no int <  int.min
float.max: 3.40282e+38 <-- no float > float.max
float.min: 1.17549e-38 <--  this shoud be  -float.max (or -inf?). It's
not a min...  =20

assert(-1 < float.min); // passed!=20
This drives me crazy on neural network...
Nov 28 2011
next sibling parent so <so so.so> writes:
On Mon, 28 Nov 2011 16:53:11 +0200, Andrea Fontana <advmail katamail.com>  
wrote:

 dmd 2.056.

 void main(string[] args)
 {
   writeln("int.max: ", int.max);
   writeln("int.min: ", int.min);
   writeln("float.max: ", float.max);
   writeln("float.min: ", float.min);
 }

 it prints:
 int.max: 2147483647      <-- no int >  int.max
 int.min: -2147483648      <-- no int <  int.min
 float.max: 3.40282e+38 <-- no float > float.max
 float.min: 1.17549e-38 <--  this shoud be  -float.max (or -inf?). It's
 not a min...

 assert(-1 < float.min); // passed!
 This drives me crazy on neural network...

D doing exactly same thing what it's predecessor doing. For example, everyone mostly define their own FLOAT_MIN, in C/C++.
Nov 28 2011
prev sibling parent Andrea Fontana <advmail katamail.com> writes:
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D fixed a lot of predecessor's mistakes :)

Il giorno lun, 28/11/2011 alle 16.59 +0200, so ha scritto:

 On Mon, 28 Nov 2011 16:53:11 +0200, Andrea Fontana <advmail katamail.com>=

 wrote:
=20
 dmd 2.056.

 void main(string[] args)
 {
   writeln("int.max: ", int.max);
   writeln("int.min: ", int.min);
   writeln("float.max: ", float.max);
   writeln("float.min: ", float.min);
 }

 it prints:
 int.max: 2147483647      <-- no int >  int.max
 int.min: -2147483648      <-- no int <  int.min
 float.max: 3.40282e+38 <-- no float > float.max
 float.min: 1.17549e-38 <--  this shoud be  -float.max (or -inf?). It's
 not a min...

 assert(-1 < float.min); // passed!
 This drives me crazy on neural network...

D doing exactly same thing what it's predecessor doing. For example, everyone mostly define their own FLOAT_MIN, in C/C++.

Nov 28 2011