• badmadevil (12/13) Feb 11 2008 ============================= isnum.d
• Sergey Gromov (6/20) Feb 11 2008 Yes, I think there is a bug, too. Though not where you're pointing it
• badmadevil (9/30) Feb 11 2008 ic, i check these strings with ruby eval() function

badmadevil <badmadevil gmail.com> writes:

============================= isnum.d
import std.stdio ;
import std.string ;
void main(string[] args) {
  for(int i = 1 ; i< args.length ; i++)
    writefln("\"%s\" is%s a numeric.", args[i], isNumeric(args[i], true)? "": "
not") ;
}
============================= output
isnum.exe 9.9e+99 99e+9.9 9.9e+9.9

"9.9e+99" is a numeric.
"99e+9.9" is a numeric.
"9.9e+9.9" is not a numeric.

The last one should give affirmative.

Sergey Gromov <snake.scaly gmail.com> writes:

badmadevil <badmadevil gmail.com> wrote:
 ============================= isnum.d
 import std.stdio ;
 import std.string ;
 void main(string[] args) {
   for(int i = 1 ; i< args.length ; i++)
     writefln("\"%s\" is%s a numeric.", args[i], isNumeric(args[i], true)? "":
" not") ;
 }
 ============================= output
isnum.exe 9.9e+99 99e+9.9 9.9e+9.9

 "9.9e+99" is a numeric.
 "99e+9.9" is a numeric.
 "9.9e+9.9" is not a numeric.
 
 The last one should give affirmative.

Yes, I think there is a bug, too.  Though not where you're pointing it 
out.  D doesn't support fractional exponents.  This means that both 
"99e+9.9" and "9.9e+9.9" are not numbers.

-- 
SnakE

badmadevil <badmadevil gmail.com> writes:

Sergey Gromov wrote:
 badmadevil <badmadevil gmail.com> wrote:
 ============================= isnum.d
 import std.stdio ;
 import std.string ;
 void main(string[] args) {
   for(int i = 1 ; i< args.length ; i++)
     writefln("\"%s\" is%s a numeric.", args[i], isNumeric(args[i], true)? "":
" not") ;
 }
 ============================= output
 isnum.exe 9.9e+99 99e+9.9 9.9e+9.9

 "9.9e+99" is a numeric.
 "99e+9.9" is a numeric.
 "9.9e+9.9" is not a numeric.

 The last one should give affirmative.

 
 Yes, I think there is a bug, too.  Though not where you're pointing it 
 out.  D doesn't support fractional exponents.  This means that both 
 "99e+9.9" and "9.9e+9.9" are not numbers.
 

ic, i check these strings with ruby eval() function
by if exception raise, and give last 2 non-numeric.

But, I also check if 9.9e99 (vs 9.9e+99)is numeric.
In ruby, it is numeric; in D isNumeric, it is not.
However, to!(real)("9.9e99") give 9.9e+99. ie. in D
 isnum2 9.9e99 99e9.9 9.9e9.9

"9.9e99" is not a numeric(9.9e+99).
"99e9.9" is not a numeric<conv error>.
"9.9e9.9" is not a numeric<conv error>.