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February 21, 2013
[Issue 9558] New: 0b and 0x prefixes for std.string.isNumeric
http://d.puremagic.com/issues/show_bug.cgi?id=9558

          Summary: 0b and 0x prefixes for std.string.isNumeric
          Product: D
          Version: D2
         Platform: All
       OS/Version: All
           Status: NEW
         Keywords: rejects-valid
         Severity: normal
         Priority: P2
        Component: Phobos
       AssignedTo: nobody@puremagic.com
       ReportedBy: bearophile_hugs@eml.cc


--- Comment #0 from bearophile_hugs@eml.cc 2013-02-21 09:52:31 PST ---
This is almost an enhancement request.

I think std.string.isNumeric should see the 0b and 0x prefixes as parts of a
number literal:


import std.stdio: writeln;
import std.string: isNumeric;
void main() {
   isNumeric("0x10").writeln();
   isNumeric("0b1010101").writeln();
}


With dmd 2.062 prints:

false
false


Expected:

true
true

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